1n2kb1r/rb4p1/p7/qp1pppNp/1p2nP1P/B4QPR/1NP1P3/2R1KB2 w - - 4 23
FEN state: 1n2kb1r/rb4p1/p7/qp1pppNp/1p2nP1P/B4QPR/1NP1P3/2R1KB2 w - - 4 23 ; Best move: b2d1
The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black bishop at b7 and black pawn at g7. Black pawn at a6. Black queen at a5, black pawn at b5, black pawn at d5, black pawn at e5, black pawn at f5, white knight at g5 and black pawn at h5. Black pawn at b4, black knight at e4, white pawn at f4 and white pawn at h4. White bishop at a3, white queen at f3, white pawn at g3 and white rook at h3. White knight at b2, white pawn at c2 and white pawn at e2. White rook at c1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 4. Full move number is 23. White to move.