r2qkb1r/1pp1p2b/n6p/p2p1Pp1/P2P2R1/BPP1Q2B/4PPKP/RN4N1 w - - 4 23
FEN state: r2qkb1r/1pp1p2b/n6p/p2p1Pp1/P2P2R1/BPP1Q2B/4PPKP/RN4N1 w - - 4 23 ; Best move: g4g3
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at e7 and black bishop at h7. Black knight at a6 and black pawn at h6. Black pawn at a5, black pawn at d5, white pawn at f5 and black pawn at g5. White pawn at a4, white pawn at d4 and white rook at g4. White bishop at a3, white pawn at b3, white pawn at c3, white queen at e3 and white bishop at h3. White pawn at e2, white pawn at f2, white king at g2 and white pawn at h2. White rook at a1, white knight at b1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 23. White to move.