r1b1k2r/p2p1q1p/P4pp1/8/2pp2nb/3PPP2/1PPNK3/R1B1QB1R w - - 0 23
FEN state: r1b1k2r/p2p1q1p/P4pp1/8/2pp2nb/3PPP2/1PPNK3/R1B1QB1R w - - 0 23 ; Best move: e1h4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at d7, black queen at f7 and black pawn at h7. White pawn at a6, black pawn at f6 and black pawn at g6. Black pawn at c4, black pawn at d4, black knight at g4 and black bishop at h4. White pawn at d3, white pawn at e3 and white pawn at f3. White pawn at b2, white pawn at c2, white knight at d2 and white king at e2. White rook at a1, white bishop at c1, white queen at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. White to move.