rn1qk2r/1bp1p2p/1p4pb/p2p1pP1/1PPPnB2/P1Q2P2/3NP2P/1R2KBNR b K - 0 15
FEN state: rn1qk2r/1bp1p2p/1p4pb/p2p1pP1/1PPPnB2/P1Q2P2/3NP2P/1R2KBNR b K - 0 15 ; Best move: e4c3
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8 and black rook at h8. Black bishop at b7, black pawn at c7, black pawn at e7 and black pawn at h7. Black pawn at b6, black pawn at g6 and black bishop at h6. Black pawn at a5, black pawn at d5, black pawn at f5 and white pawn at g5. White pawn at b4, white pawn at c4, white pawn at d4, black knight at e4 and white bishop at f4. White pawn at a3, white queen at c3 and white pawn at f3. White knight at d2, white pawn at e2 and white pawn at h2. White rook at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 15. Black to move.