TIS-100 Bench: Decimal Decomposer

NEXUS.08.633.9 Medium Arithmetic construction Routing & synchronization Built-in puzzle · TIS-100 Bench report →

Split an input into hundreds, tens, and ones digits, sending each digit to its own output.

In TIS-100 Bench, 16 LLMs each had one attempt at this TIS-100 puzzle, with 30 minutes to find a working program and keep improving it, without seeing the community leaderboard. 15 of 16 models solved it. Together they found 5 new Pareto-frontier points beyond the community leaderboard.

15 / 16models solved it
579best LLM cycles (394 community)
5new frontier points

Records

ScoreCommunity bestBest LLMModel
Cycles394579Grok 4.7 · +47%
Nodes55DeepSeek V4.1 Flash Ties record
Instructions1723Gemini 4 Argon · +35%

Community records from the community leaderboard when we froze it. A record counts only after fresh-game replay and 100,000 passing random tests.

Pareto frontier

Pareto explorer

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Community leaderboardModel frontier pointNew frontier point
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Every model

ModelSolvedBest cyclesBest nodesBest instructionsNew frontier points
01GPT-6 AstraYes6125253
02Sonnet 5.5Yes6525271
03Gemini 4 ArgonYes6865231
04Grok 4.7Yes579533—
05Muse Wonder 1.0Yes637530—
06Fable 5.1Yes651531—
07Gemini 3.8 FlashYes717530—
08GPT-6.1 SolYes721528—
09Kimi K3.1 ProYes768532—
10Opus 5.5Yes775525—
11DeepSeek V4.1 FlashYes816530—
12GPT-6 LunaYes817737—
13GLM-5.3Yes925530—
14Muse Spark 1.3Yes1,243530—
15Haiku 5.5Yes1,271531—
16MiMo-V2.6-ProNo————

Best scores can come from different programs. New frontier points are not matched or beaten on all three scores by any community program.

Best model programs

These programs are in TIS-100 save format and released under the MIT License. All of this puzzle’s model programs are on GitHub and Hugging Face.

Grok 4.7 Fewest cycles

579 cycles · 8 nodes · 92 instructionsNEXUS.08.633.9.579-8-92.txt on GitHub

Grok 4.7 program running on NEXUS.08.633.9 in TIS-100
Node 0
GO: MOV RIGHT, ACC
SAV
MOV RIGHT, ACC
SWP
SUB 200
JLZ NO
MOV ACC, DOWN
SWP
ADD 2
MOV ACC, DOWN
JMP GO
NO: ADD 200
MOV ACC, DOWN
SWP
MOV ACC, DOWN
Node 1
GO: MOV UP, ACC
SUB 800
JLZ NO8
MOV ACC, LEFT
MOV 8, LEFT
JMP GO
NO8: ADD 800
SUB 400
JLZ NO4
MOV ACC, LEFT
MOV 4, LEFT
JMP GO
NO4: ADD 400
MOV ACC, LEFT
MOV 0, LEFT
Node 3
GO: MOV UP, ACC
SAV
MOV UP, ACC
SWP
SUB 100
JLZ NO
MOV ACC, RIGHT
SWP
ADD 1
MOV ACC, DOWN
JMP GO
NO: ADD 100
MOV ACC, RIGHT
SWP
MOV ACC, DOWN
Node 4
GO: MOV LEFT, ACC
SUB 80
JLZ NO8
MOV ACC, RIGHT
MOV 8, RIGHT
JMP GO
NO8: ADD 80
SUB 40
JLZ NO4
MOV ACC, RIGHT
MOV 4, RIGHT
JMP GO
NO4: ADD 40
MOV ACC, RIGHT
MOV 0, RIGHT
Node 5
GO: MOV LEFT, ACC
SAV
MOV LEFT, ACC
SWP
SUB 20
JLZ NO
MOV ACC, DOWN
SWP
ADD 2
MOV ACC, DOWN
JMP GO
NO: ADD 20
MOV ACC, DOWN
SWP
MOV ACC, DOWN
Node 7
MOV UP, DOWN
Node 8
MOV RIGHT, DOWN
Node 9
GO: MOV UP, ACC
SAV
MOV UP, ACC
SWP
SUB 10
JLZ NO
MOV ACC, DOWN
SWP
ADD 1
MOV ACC, LEFT
JMP GO
NO: ADD 10
MOV ACC, DOWN
SWP
MOV ACC, LEFT

Gemini 4 Argon Fewest nodes

873 cycles · 5 nodes · 42 instructionsNEXUS.08.633.9.873-5-42.txt on GitHub

Gemini 4 Argon program running on NEXUS.08.633.9 in TIS-100
Node 1
MOV UP, ACC
L: SUB 200
JLZ E
MOV -1, DOWN
JMP L
E: ADD 101
JGZ ODD
MOV 2, DOWN
ADD 100
JMP D
ODD: MOV 1, DOWN
D: MOV ACC, DOWN
Node 4
MOV -2, ACC
L: ADD 2
JRO UP
ADD 1
MOV ACC, DOWN
MOV UP, DOWN
Node 7
MOV RIGHT, DOWN
Node 8
MOV UP, LEFT
MOV UP, RIGHT
MOV -6, ACC
T: ADD 3
JRO RIGHT
ADD 1
ADD 1
MOV ACC, DOWN
Node 9
MOV LEFT, ACC
L: SUB 30
MOV -1, LEFT
JGZ L
ADD 9
JLZ M01
MOV 1, LEFT
JMP D
M01: ADD 10
JLZ M0
MOV 2, LEFT
JMP D
M0: MOV 3, LEFT
ADD 10
D: MOV ACC, DOWN

Gemini 4 Argon Fewest instructions

1,866 cycles · 5 nodes · 23 instructionsNEXUS.08.633.9.1866-5-23.txt on GitHub

Gemini 4 Argon program running on NEXUS.08.633.9 in TIS-100
Node 1
MOV UP, DOWN
Node 4
MOV UP, DOWN
Node 7
MOV -1, ACC
L: ADD 1
JRO RIGHT
MOV ACC, DOWN
Node 8
MOV UP, ACC
L: SUB 100
JLZ E
MOV -1, LEFT
JMP L
E: MOV ACC, RIGHT
MOV 1, LEFT
MOV 11, ACC
T: SUB 1
JRO RIGHT
MOV ACC, DOWN
Node 9
MOV LEFT, ACC
L: ADD 10
MOV -1, LEFT
JLZ L
MOV 1, LEFT
MOV ACC, DOWN