r2k2r1/n1p3p1/p6p/1pbpp1P1/3PP1P1/1PP4N/P6P/RbBQ2KR b - - 0 23
FEN state: r2k2r1/n1p3p1/p6p/1pbpp1P1/3PP1P1/1PP4N/P6P/RbBQ2KR b - - 0 23 ; Best move: b1e4
The current state of the chess board is: Black rook at a8, black king at d8 and black rook at g8. Black knight at a7, black pawn at c7 and black pawn at g7. Black pawn at a6 and black pawn at h6. Black pawn at b5, black bishop at c5, black pawn at d5, black pawn at e5 and white pawn at g5. White pawn at d4, white pawn at e4 and white pawn at g4. White pawn at b3, white pawn at c3 and white knight at h3. White pawn at a2 and white pawn at h2. White rook at a1, black bishop at b1, white bishop at c1, white queen at d1, white king at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. Black to move.