rn2k1n1/1bqpp1br/p7/5Ppp/3pP1P1/P6P/1P1NK1B1/R1B3R1 b q - 0 21
FEN state: rn2k1n1/1bqpp1br/p7/5Ppp/3pP1P1/P6P/1P1NK1B1/R1B3R1 b q - 0 21 ; Best move: h5g4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black knight at g8. Black bishop at b7, black queen at c7, black pawn at d7, black pawn at e7, black bishop at g7 and black rook at h7. Black pawn at a6. White pawn at f5, black pawn at g5 and black pawn at h5. Black pawn at d4, white pawn at e4 and white pawn at g4. White pawn at a3 and white pawn at h3. White pawn at b2, white knight at d2, white king at e2 and white bishop at g2. White rook at a1, white bishop at c1 and white rook at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.