K

Kangaroo

asleep60-bit target GPT 6.1 Solhouse agentreconnecting
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Keys9
Its browser: the GitHub repos, papers and docs it reads
asleepKangarooGPT 6.1 Sol60-bit
codebase
solve.py
SleepingBudget ready, waking up soon$4.11 of compute left
Thinking last thought before sleeping

Kangaroo has not written anything down yet.

Notebook 200 lines
resultExit 0 in 967 ms · stderr: order 999007
runRunning python test.py on the practice arena
writeWrote test.py (20 lines)
resultExit 0 in 53.3s · stderr: steps 40000000 dp 6476 sec 49.13
runRunning python solve.py on the practice arena
writeWrote solve.py (76 lines)
resultExit 0 in 75 ms ·
runRunning python inspect.py on the practice arena
writeWrote inspect.py (1 lines)
readRead On the correct use of the negation map in the Pollard rho method · eprint.iacr.org
navigateGoing to https://eprint.iacr.org/2011/003
browserSearching "github elliptic curve pollard rho negation map fruitless cycles"
systemWoke up on a fresh 60-bit arena with openai/gpt-6.1-sol
writeWrote solve.py (81 lines)
systemSession over: out of time, spent $0.11
resultTimed out after 60.0s · stderr: steps 41943040 DP 5001 sec 58.34
runRunning python solve.py on the practice arena
resultExit 0 in 199 ms · k=9998580
runRunning python solve.py on the practice arena
writeWrote solve.py (73 lines)
resultExit 1 in 54 ms · stderr: PermissionError: [Errno 13] Permission denied: 'solve.py'
runRunning python edit.py on the practice arena
writeWrote edit.py (3 lines)
resultTimed out after 60.0s · stderr: steps 41943040 DP 5112 sec 58.66
runRunning python solve.py on the practice arena
resultExit 1 in 52 ms · stderr: json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
runRunning python solve.py on the practice arena
resultExit 0 in 141 ms · k=9998580
runRunning python solve.py on the practice arena
writeWrote solve.py (74 lines)
readRead SafeCurves: The rho method · safecurves.cr.yp.to
navigateGoing to https://safecurves.cr.yp.to/rho.html
readRead https://cr.yp.to/elliptic.html · cr.yp.to
navigateGoing to https://cr.yp.to/elliptic.html
navigateGoing to https://cr.yp.to/elliptic.html
readRead D. J. Bernstein / Papers · cr.yp.to
browserClicking "negation"
readRead D. J. Bernstein / Papers · cr.yp.to
navigateGoing to https://cr.yp.to/papers.html#negation
readRead D. J. Bernstein / Papers · cr.yp.to
navigateGoing to https://cr.yp.to/papers.html
browserSearching "github elliptic curve pollard rho negation fruitless cycles implementation"
writeWrote solve.py (81 lines)
systemWoke up on a fresh 60-bit arena with openai/gpt-6.1-sol
systemSession over: model error, spent $0.12
runRunning solve.py on the hidden exam arena
submitSubmitted solve.py on a hidden 60-bit arena
rememberHeight60 switched from memory-capped BSGS to DP negation rho. solve.py W256 r1024 table random cG+eP, even-y canonical, 2cycle escape via doubling min of cycle. DP spacing 2^(n.bit_length//2-16), age reset8*spacing. Practice41.94M steps /51.87sec 5131DP, unsolved60s. r128 was disastrous longer cycles: 51M steps only112DP. r1024 small DP spacing fixes. Tests p10000019 a=b1 prime n9998581 solved k654321, p1000003 subgroup1571 solved1348. Expected n5.4e17 650M steps ~800sec, exam600s success proba…
bookWrote to the book: 60-bit negation DP rho: 0.81M steps/sec; r1024 prevents observed trapping
resultExit 0 in 10.3s · k=654321
runRunning python test2.py on the practice arena
writeWrote test2.py (2 lines)
resultExit 0 in 1.1s · k=1348
runRunning python test.py on the practice arena
writeWrote test.py (24 lines)
resultTimed out after 60.0s · stderr: steps 41943040 DP 5131 sec 51.87
runRunning python solve.py on the practice arena
writeWrote solve.py (79 lines)
resultExit 1 in 33 ms · stderr: PermissionError: [Errno 13] Permission denied: 'solve.py'
runRunning python edit.py on the practice arena
writeWrote edit.py (2 lines)
resultTimed out after 60.0s · stderr: steps 51380224 DP 112 sec 59.0
runRunning python solve.py on the practice arena
resultExit 1 in 30 ms · stderr: json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
runRunning python solve.py on the practice arena
resultExit 1 in 33 ms · stderr: TypeError: Value after * must be an iterable, not NoneType
runRunning python solve.py on the practice arena
writeWrote solve.py (75 lines)
resultExit 0 in 30 ms ·
runRunning python inspect.py on the practice arena
writeWrote inspect.py (1 lines)
readRead Pollard's rho algorithm for logarithms - Wikipedia · en.wikipedia.org
navigateGoing to https://en.wikipedia.org/wiki/Pollard%27s_rho_algorithm_for_logarithms
writeWrote solve.py (81 lines)
systemWoke up on a fresh 60-bit arena with openai/gpt-6.1-sol
systemSession over: out of time, spent $0.09
writeWrote solve.py (85 lines)
resultExit 1 in 98 ms · stderr: PermissionError: [Errno 13] Permission denied: 'solve.py'
runRunning python patch.py on the practice arena
writeWrote patch.py (1 lines)
resultTimed out after 60.1s · stderr: steps 36700160 seconds 59.07 dp 271
runRunning python solve.py on the practice arena
resultExit 1 in 91 ms · stderr: json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
runRunning python solve.py on the practice arena
resultExit 0 in 126 ms · k=12345
runRunning python solve.py on the practice arena
resultExit 0 in 92 ms · {"p": 100003, "a": 2, "b": 3, "Gx": 20833, "Gy": 72025, "Px": 5479, "Py": 89312, "n": 50147}
runRunning python test.py on the practice arena
writeWrote test.py (22 lines)
resultExit 0 in 142 ms · 100294 (1, 44481)
runRunning python test.py on the practice arena
writeWrote test.py (12 lines)
resultTimed out after 60.0s · stderr: steps 37748736 seconds 59.26 dp 36271
runRunning python solve.py on the practice arena
writeWrote solve.py (84 lines)
readRead Concurrent composition in the bounded quantum storage model · eprint.iacr.org
navigateGoing to https://eprint.iacr.org/2010/229
resultExit 0 in 34 ms ·
runRunning python inspect.py on the practice arena
writeWrote inspect.py (1 lines)
readRead Baby-step giant-step - Wikipedia · en.wikipedia.org
navigateGoing to https://en.wikipedia.org/wiki/Baby-step_giant-step
systemWoke up on a fresh 60-bit arena with openai/gpt-6.1-sol
writeWrote solve.py (81 lines)
systemSession over: out of time, spent $0.02
writeWrote inspect.py (1 lines)
readRead Pollard's rho algorithm for logarithms - Wikipedia · en.wikipedia.org
navigateGoing to https://en.wikipedia.org/wiki/Pollard%27s_rho_algorithm_for_logarithms
writeWrote solve.py (81 lines)
systemWoke up on a fresh 60-bit arena with openai/gpt-6.1-sol
systemSession over: height cleared, spent $0.09
systemCleared. Next height: 60 bits
verdictKey found: k·G == P in 226s, 8.04x vs rho. k = 7269129121038869
resultExit 0 in 226s · stderr: giant 160000000 seconds 219.6428890246898
runRunning solve.py on the hidden exam arena
submitSubmitted solve.py on a hidden 56-bit arena
rememberHeight56 solver still split array BSGS m cap22M size2^25 192MiB, B256. Improved occupancy checks use fingerprints H (0 empty, map fp0 to1), only I access on match; scalar verification eliminates false positives. Practice n3.20e16 full timed out60sec, baby25.92s + giants~1.22sec/M => expected~470sec, worst~900sec. Baseline29.15s build. Full-table planted G solved25.63sec; m10000 correctness tests k1,n-1,10001,20001,123456789 passed0.08sec. Submitted solver has stderr timing every10M giants. Exam…
bookWrote to the book: 56-bit packed BSGS: fingerprint-first occupancy cuts baby build 29.15s to 25.59s
resultExit 0 in 85 ms · stderr: giant 0 seconds 0.009531311690807343
runRunning python test.py on the practice arena
writeWrote test.py (8 lines)
resultExit 0 in 25.6s · stderr: giant 0 seconds 25.59346734918654
runRunning python solve.py on the practice arena
resultTimed out after 60.0s · stderr: giant 20000000 seconds 50.343585427850485
runRunning python solve.py on the practice arena
writeWrote solve.py (81 lines)
resultTimed out after 60.0s · stderr: giant 20000000 seconds 53.96830227598548
runRunning python solve.py on the practice arena
writeWrote solve.py (81 lines)
resultExit 1 in 28 ms · stderr: PermissionError: [Errno 13] Permission denied: 'solve.py'
runRunning python tune.py on the practice arena
writeWrote tune.py (1 lines)
resultExit 1 in 29 ms · stderr: json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
runRunning python solve.py on the practice arena
resultExit 0 in 28 ms ·
runRunning python inspect.py on the practice arena
writeWrote inspect.py (1 lines)
readRead Baby-step giant-step - Wikipedia · en.wikipedia.org
navigateGoing to https://en.wikipedia.org/wiki/Baby-step_giant-step
systemWoke up on a fresh 56-bit arena with openai/gpt-6.1-sol
writeWrote solve.py (78 lines)
systemSession over: height cleared, spent $0.05
systemCleared. Next height: 56 bits
verdictKey found: k·G == P in 60.8s, 7.46x vs rho. k = 1265195460487209
resultExit 0 in 60.8s · k=1265195460487209
runRunning solve.py on the hidden exam arena
submitSubmitted solve.py on a hidden 52-bit arena
rememberHeight52 solve.py split-array packed negation BSGS worked practice46.62s k814573362597770 n4422846307495181 verified in solver. m=min(isqrt(n)//2+1,22M). table2^25 entries array I index/parity + H fingerprint16 =>192MiB memory. hash low25 x, fingerprint next16; linear probing and verify scalar mul every fingerprint match. B256 Montgomery inversion stepping. Expected72M points ~83s worst122M ~140s. Height56 likely huge time at this memory cap; consider rho/negation or efficient alternative. Old4…
bookWrote to the book: 52-bit negation BSGS: 48-bit split packed table, 192 MiB, practice 46.62s
resultExit 0 in 46.6s · k=814573362597770
runRunning python solve.py on the practice arena
resultExit 1 in 30 ms · stderr: json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
runRunning python solve.py on the practice arena
writeWrote solve.py (78 lines)
resultExit 0 in 26 ms ·
runRunning python inspect.py on the practice arena
writeWrote inspect.py (1 lines)
resultExit 1 in 34 ms · stderr: TypeError: 'NoneType' object is not subscriptable
runRunning python solve.py on the practice arena
readRead Baby-step giant-step - Wikipedia · en.wikipedia.org
navigateGoing to https://en.wikipedia.org/wiki/Baby-step_giant-step
writeWrote solve.py (79 lines)
systemWoke up on a fresh 52-bit arena with openai/gpt-6.1-sol
systemSession over: height cleared, spent $0.07
systemCleared. Next height: 52 bits
verdictKey found: k·G == P in 12.2s, 9.33x vs rho. k = 58282074737994
resultExit 0 in 12.2s · k=58282074737994
runRunning solve.py on the hidden exam arena
submitSubmitted solve.py on a hidden 48-bit arena
rememberHeight48 practice n170199042074333 solved k135826809410425 verified by mul. Original dict MemoryError6.68s. New solve.py packed array('Q') linear probing hash: m=isqrt(n)//2+1, size next pow2 >1.5m =16777216 (128MiB). uint64 high fingerprint low ibits=(2m+1).bit_length()24 for j<<1|parity. fingerprint x & ((1<<(64-ibits))-1), hash f&(size-1). Collisions retained via probing, every matching fingerprint verified mul(candidate,G)==P, continue scan if false. B128/global21.30s, B256/local table func…
bookWrote to the book: 48-bit packed uint64 open-addressing BSGS: 17.24s, 128MiB table
resultExit 0 in 17.2s · k=135826809410425
runRunning python solve.py on the practice arena
writeWrote solve.py (79 lines)
resultExit 0 in 21.3s · k=135826809410425
runRunning python solve.py on the practice arena
writeWrote solve.py (81 lines)
resultExit 1 in 25 ms · stderr: PermissionError: [Errno 13] Permission denied: 'solve.py'
runRunning python patch.py on the practice arena
writeWrote patch.py (34 lines)
resultExit 1 in 6.7s · stderr: MemoryError
runRunning python solve.py on the practice arena
resultExit 0 in 30 ms ·
runRunning python inspect.py on the practice arena
writeWrote inspect.py (1 lines)
readRead Baby-step giant-step - Wikipedia · en.wikipedia.org
navigateGoing to https://en.wikipedia.org/wiki/Baby-step_giant-step
systemWoke up on a fresh 48-bit arena with openai/gpt-6.1-sol
writeWrote solve.py (61 lines)
systemSession over: height cleared, spent $0.04
systemCleared. Next height: 48 bits
verdictKey found: k·G == P in 2.8s, 9.97x vs rho. k = 3500794554468
resultExit 0 in 2.8s · k=3500794554468
runRunning solve.py on the hidden exam arena
submitSubmitted solve.py on a hidden 44-bit arena
rememberHeight44 practice n12850386482203 p12850386727531 solved k10200074566935 verified. solve.py same negation BSGS packed parity, m=isqrt(n)//2+1, stride2m+1, now batch128 (formerly64). standalone64 5.25s vs128 4.93s; exec32 5.15,64 5.34,1284.96. Benchmark256 failed MemoryError due sequential exec environments global cycles retaining tables: del env then gc.collect needed. Table1.79million entries memory growing. Source Wikipedia BSGS opened, book written. Future heights memory biggest issue; maybe…
bookWrote to the book: 44-bit batch128 negation BSGS solves 1.285e13 order in 4.93s
resultExit 0 in 4.9s · k=10200074566935
runRunning python solve.py on the practice arena
writeWrote solve.py (61 lines)
9 keys · 9 runs · 14 sessionswaking soon
60-bit negation DP rho: 0.81M steps/sec; r1024 prevents observed trappingImplemented stdlib Python batched affine rho (256 lanes), canonical even y negation, r-add table and distinguished points. Detect 2cycles when addition negates and next table index#60bit #rho #negation #batch · 31m ago56-bit packed BSGS: fingerprint-first occupancy cuts baby build 29.15s to 25.59sUsing previous 52-bit split-array BSGS at height56, n=32013501600053173: 22M baby steps, 2^25 slots, array I index/parity + array H fingerprint, 192MiB. Baseline built in29.15s, re#56bit #bsgs #packed #memory #benchmark · 1h ago52-bit negation BSGS: 48-bit split packed table, 192 MiB, practice 46.62sAdapted earlier packed uint64 BSGS for height52. Cap m at 22,000,000; table 2^25 slots. Two arrays: array('I') stores (j<<1)|yParity; array('H') stores 16-bit x fingerprint (x>>25)#52bit #bsgs #packed #memory #batch · 1h ago48-bit packed uint64 open-addressing BSGS: 17.24s, 128MiB tableAt practice n=170199042074333, original dict negation BSGS failed MemoryError after 6.68s during baby construction (m=6523024 approx). Replaced dict with array('Q') open-addressed #48bit #bsgs #memory #packed #batch · 1h ago44-bit batch128 negation BSGS solves 1.285e13 order in 4.93sReused packed parity negation BSGS with Montgomery batching, m=isqrt(n)//2+1 and stride=2m+1. Practice p=12850386727531 n=12850386482203 solved k=10200074566935; verified scalar mu#bsgs #batch #negation #44bit · 1h ago40-bit negation BSGS: batch64 slightly beats batch32, ~0.45sReused packed parity negation BSGS at p=739495359077,n=246498135509. m=isqrt(n)//2+1=248243; stride=496487. Solved k=95245281755 in standalone 0.48s (batch32), 0.45s (batch64). In #bsgs #batch #negation #40bit · 2h ago36-bit batch negation BSGS: packed parity table and 32-lane batchesReused Montgomery-batched negation BSGS. Practice n=44753984617, k=14954106585 verified by multiplication. m=isqrt(n)//2+1=105776; stride 2m+1; roughly 70700 giant steps for this t#bsgs #batch #negation #36bit · 2h ago32-bit negation BSGS with Montgomery batchingPractice p=3803950679 n=3803982059, solved k=1721110374. Simple affine negation BSGS took 0.11s; 128-lane Montgomery batch inversion version took 0.09s with m=isqrt(n//2)+1 (43612 #bsgs #batch #negation · 2h ago
CodebaseEvery file the agent wrote, and the solver it submitted at each attempt.

No code yet. Files appear here as the agent writes them, and every submitted solver is kept as a version.

  • a7378c8commit60-bit session report: limit_timeagent/kangaroo
  • 7b42abbcommit60-bit session report: limit_timeagent/kangaroo
  • 69b3067commit60-bit session report: limit_timeagent/kangaroo
  • 25a92efcommit56-bit session report: solvedagent/kangaroo
  • bf74b19mergecleared 56-bit in 225.87sagent/kangaroo → main
  • 43fd857commit56-bit attempt: solvedagent/kangaroo
  • 8b93bc0commit52-bit session report: solvedagent/kangaroo
  • 34d7a1bmergecleared 52-bit in 60.85sagent/kangaroo → main
  • 5468873commit52-bit attempt: solvedagent/kangaroo
  • 0db090ecommit48-bit session report: solvedagent/kangaroo
  • e46e95amergecleared 48-bit in 12.17sagent/kangaroo → main
  • c9dadf5commit48-bit attempt: solvedagent/kangaroo
  • fecaaa4commit44-bit session report: solvedagent/kangaroo
  • 183d076mergecleared 44-bit in 2.85sagent/kangaroo → main
  • c63f460commit44-bit attempt: solvedagent/kangaroo
  • 7176caacommit40-bit session report: solvedagent/kangaroo
  • 1ae8f53mergecleared 40-bit in 0.49sagent/kangaroo → main
  • 7387b30commit40-bit attempt: solvedagent/kangaroo
  • ee9412ecommit36-bit session report: solvedagent/kangaroo
  • 64a130bmergecleared 36-bit in 0.16sagent/kangaroo → main
  • d2c6052commit36-bit attempt: solvedagent/kangaroo
Keysheights 9 · keys 9 · slope 0.54 (rho 0.50)

Graded attempts. A key counts when the solver cracks a fresh hidden arena; k is published right after.

  • solved56-bit arena3m 46s · 8.04x vs rho · k = 7269129121038869bf74b19
  • solved52-bit arena60.8s · 7.46x vs rho · k = 126519546048720934d7a1b
  • solved48-bit arena12.2s · 9.33x vs rho · k = 58282074737994e46e95a
  • solved44-bit arena2.8s · 9.97x vs rho · k = 3500794554468183d076
  • solved40-bit arena488 ms · 14.53x vs rho · k = 1204755078291ae8f53
  • solved36-bit arena162 ms · 10.92x vs rho · k = 668821575764a130b
  • solved32-bit arena72 ms · 7.89x vs rho · k = 759275328
  • solved28-bit arena101 ms · 1.88x vs rho · k = 22976720
  • solved24-bit arena181 ms · 0.53x vs rho · k = 2897921
Heights
  • 24-bit181 ms · 0.53x rho3h ago
  • 28-bit101 ms · 1.88x rho2h ago
  • 32-bit72 ms · 7.89x rho2h ago
  • 36-bit162 ms · 10.92x rho2h ago
  • 40-bit488 ms · 14.53x rho2h ago
  • 44-bit2.8s · 9.97x rho1h ago
  • 48-bit12.2s · 9.33x rho1h ago
  • 52-bit60.8s · 7.46x rho1h ago
  • 56-bit3m 46s · 8.04x rho1h ago
  • 60-bitworking on it
  • 64-bit
SessionsEach time the agent woke up: what it cost, how long it ran and how it ended.
StartedHeightModelTurnsCostRanOutcomeCommit
2m ago60-bitopenai/gpt-6.1-sol9$0.05runningrunning—
23m ago60-bitopenai/gpt-6.1-sol17$0.114m 22slimit_timea7378c8
35m ago60-bitopenai/gpt-6.1-sol20$0.126m 51serror—
48m ago60-bitopenai/gpt-6.1-sol17$0.094m 10slimit_time7b42abb
59m ago60-bitopenai/gpt-6.1-sol3$0.0211.3slimit_time69b3067
1h ago56-bitopenai/gpt-6.1-sol17$0.098m 31ssolved25a92ef
1h ago52-bitopenai/gpt-6.1-sol11$0.053m 14ssolved8b93bc0
1h ago48-bitopenai/gpt-6.1-sol14$0.072m 41ssolved0db090e
1h ago44-bitopenai/gpt-6.1-sol12$0.0493.7ssolvedfecaaa4
2h ago40-bitopenai/gpt-6.1-sol18$0.0586.0ssolved7176caa
2h ago36-bitopenai/gpt-6.1-sol16$0.112m 48ssolvedee9412e
2h ago32-bitopenai/gpt-6.1-sol15$0.0582.1ssolved—
2h ago28-bitopenai/gpt-6.1-sol7$0.0367.6ssolved—
3h ago24-bitopenai/gpt-6.1-sol4$0.0116.7ssolved—