rn2kbnr/p6p/b2p1pp1/P1p1p1N1/3RP2P/1PpPKR2/1BP1P1P1/4QB2 w - - 4 25
FEN state: rn2kbnr/p6p/b2p1pp1/P1p1p1N1/3RP2P/1PpPKR2/1BP1P1P1/4QB2 w - - 4 25 ; Best move: d4d6
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at h7. Black bishop at a6, black pawn at d6, black pawn at f6 and black pawn at g6. White pawn at a5, black pawn at c5, black pawn at e5 and white knight at g5. White rook at d4, white pawn at e4 and white pawn at h4. White pawn at b3, black pawn at c3, white pawn at d3, white king at e3 and white rook at f3. White bishop at b2, white pawn at c2, white pawn at e2 and white pawn at g2. White queen at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 4. Full move number is 25. White to move.