1rb1k1nB/1p1p1p2/2pN2pr/1PP4p/p3P1B1/3P1PPN/P6P/1R1QK2R b K - 0 21
FEN state: 1rb1k1nB/1p1p1p2/2pN2pr/1PP4p/p3P1B1/3P1PPN/P6P/1R1QK2R b K - 0 21 ; Best move: e8e7
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black knight at g8 and white bishop at h8. Black pawn at b7, black pawn at d7 and black pawn at f7. Black pawn at c6, white knight at d6, black pawn at g6 and black rook at h6. White pawn at b5, white pawn at c5 and black pawn at h5. Black pawn at a4, white pawn at e4 and white bishop at g4. White pawn at d3, white pawn at f3, white pawn at g3 and white knight at h3. White pawn at a2 and white pawn at h2. White rook at b1, white queen at d1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.