Prompt: Chessboard Analysis 1
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How models perform on this prompt
Gemini 3 Pro Preview
Model answer: { "total_pieces": 12, "pieces": { "WK": 1, "WQ": 1, "WR": 1, "WB": 1, "WN": 1, "WP": 1, "BK": 1, "BQ": 1, "BR": 1, "BB": 1, "BN": 1, "BP": 1 }, "illegal_pieces": "e3,e4" }
Arcee.ai Spotlight
Model answer: 1. 16 WQ: 0 WR: 2 WB: 2 WN: 2 WP: 4 BQ: 0 BR: 2 BB: 2 BN: 2 BP: 4 2. None.
ChatGPT-4o (High Reasoning)
Model answer: { "answer": { "total_pieces": 13, "pieces": { "WK": 1, "WQ": 1, "WR": 1, "WB": 2, "WN": 1, "WP": 1, "BK": 1, "BQ": 1, "BR": 1, "BB": 1, "BN": 1, "BP": 1 }, "illegal_pieces": "e1,e2" } }
ChatGPT-4o (Medium Reasoning)
Model answer: {"answer": {"total_pieces": 13, "pieces": {"WK":1, "WQ":1, "WR":1, "WB":2, "WN":1, "WP":1, "BK":1, "BQ":1, "BR":1, "BB":1, "BN":1, "BP":1, "BQ":1}, "illegal_pieces":"e1,e2,e3"}}
Claude 3.5 Haiku
Model answer: 1. 12 WK: 1 WQ: 1 WR: 1 WB: 1 WN: 1 WP: 1 BK: 1 BQ: 1 BR: 1 BB: 1 BN: 1 BP: 1 2. None.
Claude 3.7 Sonnet
Model answer: Looking at this chess board image, I can see it shows a chess set with pieces that appear to be flat discs with chess piece symbols engraved on them, placed on a black and white checkered board. 1. 11 WK: 1 WQ: 1 WR: 1 WB: 1 WN: 1 WP: 2 BK: 1 BQ: 0 BR: 0 BB: 1 BN: 1 BP: 1 2. None. The board shows a somewhat unusual setup with pieces scattered in what appears to be a game in progress. The pieces are represented as circular tokens with chess symbols rather than traditional 3D chess pieces. All pieces appear to be in positions that could be legally reached during gameplay.
Claude 4 Opus
Model answer: 1. How many pieces are on the board? 12 WK: 1 WQ: 1 WR: 2 WB: 1 WN: 2 WP: 1 BK: 1 BQ: 1 BR: 1 BN: 1 BP: 0 2. Are any pieces in positions that violate standard chess rules? None.
Claude 4 Sonnet
Model answer: 1. 11 WK: 1 WQ: 1 WR: 1 WB: 1 WN: 1 WP: 1 BK: 1 BQ: 1 BR: 1 BN: 1 BP: 1 2. None.
Claude 4.1 Opus
Model answer: 1. How many pieces are on the board? 12 WK: 1 WQ: 1 WR: 2 WB: 1 WN: 2 WP: 1 BK: 1 BQ: 1 BR: 1 BN: 1 BP: 0 2. Are any pieces in positions that violate standard chess rules? None.
Claude 4.6 Opus
Model answer: {"total_pieces": 12, "pieces": {"WK": 1, "WQ": 1, "WR": 1, "WB": 3, "WN": 1, "WP": 1, "BK": 0, "BQ": 1, "BR": 1, "BB": 0, "BN": 1, "BP": 1}, "illegal_pieces": "None"}
Cohere Aya Vision 32B
Model answer: 1. 32 W: K: 1 Q: 1 R: 2 B: 2 N: 2 P: 8 B: K: 1 Q: 1 R: 2 B: 2 N: 2 P: 8 2. None
Cohere Aya Vision 8B
Model answer: 1. There are 32 pieces on the board. White pieces: - 1 Queen (Q) - 1 Rook (R) - 2 Bishops (B) - 2 Knights (N) - 8 Pawns (P) Black pieces: - 1 King (K) - 1 Rook (R) - 2 Bishops (B) - 2 Knights (N) - 8 Pawns (P) 2. None.
GPT-4.1
Model answer: { "total_pieces": 12, "pieces": { "WK": 1, "WQ": 1, "WR": 1, "WB": 2, "WN": 1, "WP": 1, "BK": 1, "BQ": 1, "BR": 1, "BB": 0, "BN": 1, "BP": 1 }, "illegal_pieces": "e4,e5,f5,g5,h5" }
GPT-4.1 Mini
Model answer: {"answer": {"total_pieces": 11, "pieces": {"WK": 0, "WQ": 1, "WR": 1, "WB": 1, "WN": 1, "WP": 1, "BK": 1, "BQ": 1, "BR": 1, "BB": 0, "BN": 1, "BP": 2}, "illegal_pieces": "g7"}}
GPT-4.1 Nano
Model answer: {"total_pieces":15, "pieces":{"WK":1,"WQ":1,"WR":1,"WB":1,"WN":1,"WP":4,"BK":1,"BQ":1,"BR":1,"BB":1,"BN":1,"BP":4},"illegal_pieces":"None."}
GPT-5
Model answer: {"answer":"{\"total_pieces\":12, \"pieces\": {\"WK\":0, \"WQ\":1, \"WR\":2, \"WB\":3, \"WN\":1, \"WP\":1, \"BK\":1, \"BQ\":1, \"BR\":0, \"BB\":0, \"BN\":1, \"BP\":1}, \"illegal_pieces\":\"None\"}"}
GPT-5 (high reasoning)
Model answer: {"total_pieces":13,"pieces":{"WK":0,"WQ":1,"WR":3,"WB":1,"WN":2,"WP":1,"BK":1,"BQ":1,"BR":0,"BB":1,"BN":1,"BP":1},"illegal_pieces":"g8"}
GPT-5 Mini
Model answer: {"answer":"{\"total_pieces\":13, \"pieces\":{\"WK\":1, \"WQ\":1, \"WR\":1, \"WB\":1, \"WN\":1, \"WP\":2, \"BK\":1, \"BQ\":1, \"BR\":2, \"BB\":0, \"BN\":1, \"BP\":1}, \"illegal_pieces\":\"None\"}"}
GPT-5 Nano
Model answer: {"answer": "I need a higher-resolution image to accurately count the pieces and check for illegal positions."}
GPT-5.1
Model answer: {"answer":{"total_pieces":12,"pieces":{"WK":0,"WQ":1,"WR":2,"WB":2,"WN":1,"WP":1,"BK":1,"BQ":1,"BR":1,"BB":0,"BN":1,"BP":1},"illegal_pieces":"None."}}
GPT-5.2
Model answer: { "total_pieces": 11, "pieces": { "WK": 1, "WQ": 2, "WR": 2, "WB": 2, "WN": 2, "WP": 1, "BK": 0, "BQ": 0, "BR": 0, "BB": 0, "BN": 0, "BP": 1 }, "illegal_pieces": "None." }
Gemini 2.0 Flash
Model answer: { "total_pieces": 12, "pieces": { "WK": 1, "WQ": 1, "WR": 1, "WB": 1, "WN": 1, "WP": 1, "BK": 0, "BQ": 0, "BR": 1, "BB": 1, "BN": 1, "BP": 3 }, "illegal_pieces": "None" }
Gemini 2.0 Flash Lite
Model answer: { "total_pieces": 13, "pieces": { "WK": 1, "WQ": 1, "WR": 1, "WB": 1, "WN": 1, "WP": 1, "BK": 1, "BQ": 1, "BR": 1, "BB": 1, "BN": 1, "BP": 1 }, "illegal_pieces": "None." }
Gemini 2.5 Flash
Model answer: { "answer": { "total_pieces": 12, "pieces": { "WK": 1, "WQ": 2, "WR": 3, "WB": 2, "WN": 1, "WP": 1, "BK": 0, "BQ": 0, "BR": 0, "BB": 0, "BN": 1, "BP": 1 }, "illegal_pieces": "g7" } }
Gemini 2.5 Flash Lite
Model answer: { "total_pieces": 13, "pieces": { "WK": 1, "WQ": 1, "WR": 1, "WB": 0, "WN": 1, "WP": 1, "BK": 1, "BQ": 1, "BR": 0, "BB": 0, "BN": 1, "BP": 5 }, "illegal_pieces": "None." }
Gemini 2.5 Pro
Model answer: { "total_pieces": 12, "pieces": { "WK": 0, "WQ": 1, "WR": 1, "WB": 2, "WN": 1, "WP": 1, "BK": 1, "BQ": 1, "BR": 1, "BB": 1, "BN": 1, "BP": 1 }, "illegal_pieces": "d4,e3" }
Gemini 3 Flash
Model answer: { "answer": { "total_pieces": 12, "pieces": { "WK": 1, "WQ": 1, "WR": 1, "WB": 2, "WN": 1, "WP": 1, "BK": 1, "BQ": 1, "BR": 1, "BB": 0, "BN": 1, "BP": 1 }, "illegal_pieces": "e3,e4" } }
Gemini 3 Flash (Tools)
Model answer: {"total_pieces": 12, "pieces": {"WK": 1, "WQ": 1, "WR": 2, "WB": 2, "WN": 1, "WP": 2, "BK": 1, "BQ": 1, "BR": 0, "BB": 0, "BN": 1, "BP": 0}, "illegal_pieces": "e3,e4"}
Gemma 3 27b
Model answer: 1. 14 WQ: 1 WP: 1 WR: 1 WB: 1 WN: 1 WK: 1 BQ: 1 BP: 3 BR: 0 BB: 1 BN: 1 BK: 1 2. None
Gemma 3 4B
Model answer: 1. 11 W: Q: 1, R: 1, B: 0, N: 1, P: 1 B: Q: 1, R: 1, B: 1, N: 1, P: 2 2. None
Llama 4 Maverick 17B
Model answer: 1. 12 WK: 1 WQ: 1 WR: 1 WB: 2 WN: 1 WP: 1 BK: 1 BQ: 1 BR: 1 BB: 1 BN: 1 BP: 1 2. e4,f4,g5,f6,e6,d7,d5,g4,h5,h3 To determine the final answer for question 2, let's analyze the given chessboard image. The chessboard image shows a total of 12 pieces on the board. Upon closer inspection, it is evident that some pieces are in positions that violate standard chess rules. The white pawn on f4 is on the fourth row, which is not its starting position, but it's not necessarily an illegal position. However, considering the other pieces, there are several issues: - The black king is on e6, and it's in check by the white bishop on g4 (if we consider the white bishop on f4 as having moved from c1, it's not on its original diagonal) and potentially other pieces, but more importantly, the white king is on f6, putting the black king in check. However, the white king is also in check by the black bishop on d7 (or d5, depending on its actual move history). The presence of both kings in a position to capture each other is illegal because it implies both players put each other in check simultaneously, which is not allowed. Other issues include: - Multiple pieces (like the white queen and white bishop) being on the same rank or adjacent squares without a clear explanation of how they got there, suggesting a possible misinterpretation or an illegal position due to the lack of information about the move history. Upon closer inspection, the positions that could be considered illegal based on standard chess rules or highly improbable due to the given setup are related to the kings and other pieces being in check or potentially having moved illegally. Pieces in potentially illegal positions based on their current placement are: - e4 (white bishop) - f4 (white bishop/knight) - g5 (white knight) - f6 (white king) - e6 (black king) - d7 (black bishop) - d5 (black knight) - g4 (white bishop) - h5 (white queen) - h3 (black rook) Thus, the positions are e4,f4,g5,f6,e6,d7,d5,g4,h5,h3. The final answer for question
Llama 4 Scout 17B
Model answer: ## 1. 16 WK: 1 WQ: 1 WR: 1 WB: 1 WN: 1 WP: 5 BK: 1 BQ: 0 BR: 1 BB: 0 BN: 1 BP: 3 ## 2. None.
Mistral Medium 3
Model answer: 1. 19 WK: 1 WQ: 1 WR: 2 WB: 1 WN: 1 WP: 2 BK: 1 BQ: 1 BR: 2 BB: 1 BN: 1 BP: 5 2. None.
Mistral Small 3.1 24B
Model answer: 1. 14 WK: 1 WQ: 0 WR: 1 WB: 1 WN: 1 WP: 5 BK: 1 BQ: 1 BR: 1 BB: 2 BN: 0 BP: 3 2. b7, h1, f4, e2
OpenAI O1
Model answer: {"answer": { "total_pieces": 12, "pieces": { "WK": 1, "WQ": 1, "WR": 1, "WB": 1, "WN": 1, "WP": 1, "BK": 1, "BQ": 1, "BR": 1, "BB": 1, "BN": 1, "BP": 1 }, "illegal_pieces": "None." }}
OpenAI O3 (High Reasoning)
Model answer: {"answer": {"total_pieces": 13, "pieces": {"WK": 0, "WQ": 1, "WR": 1, "WB": 2, "WN": 1, "WP": 2, "BK": 1, "BQ": 1, "BR": 2, "BB": 1, "BN": 1, "BP": 0}, "illegal_pieces": "None"}}
OpenAI O3 (Medium Reasoning)
Model answer: {"answer":{"total_pieces":11,"pieces":{"WK":0,"WQ":1,"WR":1,"WB":1,"WN":1,"WP":1,"BK":1,"BQ":1,"BR":1,"BB":1,"BN":1,"BP":1},"illegal_pieces":"None."}}
OpenAI O4 Mini (High Reasoning)
Model answer: {"answer":{"total_pieces":14,"pieces":{"WK":0,"WQ":1,"WR":0,"WB":1,"WN":1,"WP":1,"BK":1,"BQ":1,"BR":3,"BB":1,"BN":1,"BP":1},"illegal_pieces":"None"}}
OpenAI O4 Mini (Medium Reasoning)
Model answer: {"answer":{"total_pieces":12,"pieces":{"WK":1,"WQ":1,"WR":2,"WB":2,"WN":1,"WP":2,"BK":0,"BQ":1,"BR":0,"BB":0,"BN":1,"BP":1},"illegal_pieces":"None"}}
Phi 4 Multimodal
Model answer: 1. How many pieces are on the board? Provide only the number. WQ: 3 BQ: 3 QR: 2 BR: 2 BN: 8 P: 16 2. Are any pieces in positions that violate standard chess rules? None.
Qwen 2.5 VL 7B
Model answer: 1. 15 WQ: 0 WR: 2 WB: 2 WN: 2 WP: 5 BR: 2 BB: 2 BN: 2 BP: 3 2. None.