rn3b1r/1p2n1pp/1q1p1k2/p1pb4/P1P1N1p1/RP1PB2P/4P2R/3QKBN1 b - - 4 22
FEN state: rn3b1r/1p2n1pp/1q1p1k2/p1pb4/P1P1N1p1/RP1PB2P/4P2R/3QKBN1 b - - 4 22 ; Best move: d5e4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8 and black rook at h8. Black pawn at b7, black knight at e7, black pawn at g7 and black pawn at h7. Black queen at b6, black pawn at d6 and black king at f6. Black pawn at a5, black pawn at c5 and black bishop at d5. White pawn at a4, white pawn at c4, white knight at e4 and black pawn at g4. White rook at a3, white pawn at b3, white pawn at d3, white bishop at e3 and white pawn at h3. White pawn at e2 and white rook at h2. White queen at d1, white king at e1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 22. Black to move.