rn2k1nr/7p/p2bbp2/PNppP1p1/1P1Pp3/2P1K2P/Q3P2R/1R2BBN1 b kq - 1 21
FEN state: rn2k1nr/7p/p2bbp2/PNppP1p1/1P1Pp3/2P1K2P/Q3P2R/1R2BBN1 b kq - 1 21 ; Best move: d6e5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black knight at g8 and black rook at h8. Black pawn at h7. Black pawn at a6, black bishop at d6, black bishop at e6 and black pawn at f6. White pawn at a5, white knight at b5, black pawn at c5, black pawn at d5, white pawn at e5 and black pawn at g5. White pawn at b4, white pawn at d4 and black pawn at e4. White pawn at c3, white king at e3 and white pawn at h3. White queen at a2, white pawn at e2 and white rook at h2. White rook at b1, white bishop at e1, white bishop at f1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 21. Black to move.