1r2kbn1/3n1ppr/p1b4p/1pPpp1P1/N2P1q2/1Q2P3/PP5P/R1BK2NR w - - 4 18
FEN state: 1r2kbn1/3n1ppr/p1b4p/1pPpp1P1/N2P1q2/1Q2P3/PP5P/R1BK2NR w - - 4 18 ; Best move: e3f4
The current state of the chess board is: Black rook at b8, black king at e8, black bishop at f8 and black knight at g8. Black knight at d7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at a6, black bishop at c6 and black pawn at h6. Black pawn at b5, white pawn at c5, black pawn at d5, black pawn at e5 and white pawn at g5. White knight at a4, white pawn at d4 and black queen at f4. White queen at b3 and white pawn at e3. White pawn at a2, white pawn at b2 and white pawn at h2. White rook at a1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 18. White to move.