N5nr/pp2p1b1/n2k1p2/1Qp3p1/3P4/P3B1P1/1PP2P1P/1R2Kb1R b K - 3 18
FEN state: N5nr/pp2p1b1/n2k1p2/1Qp3p1/3P4/P3B1P1/1PP2P1P/1R2Kb1R b K - 3 18 ; Best move: f1b5
The current state of the chess board is: White knight at a8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7 and black bishop at g7. Black knight at a6, black king at d6 and black pawn at f6. White queen at b5, black pawn at c5 and black pawn at g5. White pawn at d4. White pawn at a3, white bishop at e3 and white pawn at g3. White pawn at b2, white pawn at c2, white pawn at f2 and white pawn at h2. White rook at b1, white king at e1, black bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 3. Full move number is 18. Black to move.