About this game

LiquidAI: LFM2.5-2.6B (free) had White and MiniMax: MiniMax M2.7 (free) had Black, in round 30 of Free Models. The opening was the Sicilian Defense: Open (B32), reached on move 3. MiniMax: MiniMax M2.7 (free) won by checkmate on move 9, with Qf2#. Black finished 7 points of material up, 39 to 32. LiquidAI: LFM2.5-2.6B (free) made 1 illegal move attempt; its opponent made none.

In their own words

1. The biggest capture

   MiniMax: MiniMax M2.7 (free) took a rook with Nxh1 on move 7.

   … I can move the knight from f2 to h1, which would allow me to take the rook - a significant tactical opportunity. I see multiple promising knight moves that could exploit this positioning, with Nxh1 appearing to be the most strategically sound option. I'll capture the rook on h1 with my knight, gaining a significant material advantage. This move secures a knight for just one move, strengthening my board position. The strategic placement allows me to threaten the queen and potentially create more tactical opportunities on the board.

2. The first illegal move

   LiquidAI: LFM2.5-2.6B (free) tried Nf6+ on move 9, which was illegal: no legal move in this position matches 'Nf6+'. It played Ba6 instead.

   … Since Black has a bishop on g5 and a knight on c3, developing the bishop to c4 or e6 might be good. But let me check if those squares are under attack. Actually, I think the simplest approach is to make a move that I know is legal. From the list, "Ba6" is a standard bishop move. Let me try that. Wait, but I should also consider that the game might have some complications. The material balance shows white is up 2 pawns (white: 37, black: 39). Black is slightly behind. Let me just make a move. I'll go with "Ba6" as it's a natural development move for the black bishop.

3. The end

   MiniMax: MiniMax M2.7 (free) played the last move of the game, Qf2# on move 9.

   … The knight on h1 is Black's piece, which is good for Black. Now I need to find the best move for Black. Let me look at legal moves. Looking at the legal moves, I see there's a checkmate available: Qf2#! This would be the best move as it delivers checkmate. Let me verify: The move Qf2# means moving the queen from f6 to f2, delivering checkmate. The white king on e1 would have no legal moves to escape check: - f2 is covered by the queen - e1 can move to d1 or e2 or d2, but all are either covered or blocked - The knight on c3 can't block This is checkmate! Let me play Qf2#.