r2k1b1r/3npp2/3pq3/pppP1npp/1P4bP/P1P1PN2/3QB1P1/R1B1K1NR w - - 0 18
FEN state: r2k1b1r/3npp2/3pq3/pppP1npp/1P4bP/P1P1PN2/3QB1P1/R1B1K1NR w - - 0 18 ; Best move: d5e6
The current state of the chess board is: Black rook at a8, black king at d8, black bishop at f8 and black rook at h8. Black knight at d7, black pawn at e7 and black pawn at f7. Black pawn at d6 and black queen at e6. Black pawn at a5, black pawn at b5, black pawn at c5, white pawn at d5, black knight at f5, black pawn at g5 and black pawn at h5. White pawn at b4, black bishop at g4 and white pawn at h4. White pawn at a3, white pawn at c3, white pawn at e3 and white knight at f3. White queen at d2, white bishop at e2 and white pawn at g2. White rook at a1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.