1nb1q1nr/r2pk3/p4pp1/1pp3bp/P1PpP3/1P2B2P/R2NNPP1/1Q2KB1R w K - 6 18
FEN state: 1nb1q1nr/r2pk3/p4pp1/1pp3bp/P1PpP3/1P2B2P/R2NNPP1/1Q2KB1R w K - 6 18 ; Best move: e3g5
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at e8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at d7 and black king at e7. Black pawn at a6, black pawn at f6 and black pawn at g6. Black pawn at b5, black pawn at c5, black bishop at g5 and black pawn at h5. White pawn at a4, white pawn at c4, black pawn at d4 and white pawn at e4. White pawn at b3, white bishop at e3 and white pawn at h3. White rook at a2, white knight at d2, white knight at e2, white pawn at f2 and white pawn at g2. White queen at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 6. Full move number is 18. White to move.