rn3br1/p1k1p3/2p1b1qn/1P2PPp1/1P1p3p/1RPB3P/1BQP1P2/1N2K1NR b K - 2 18
FEN state: rn3br1/p1k1p3/2p1b1qn/1P2PPp1/1P1p3p/1RPB3P/1BQP1P2/1N2K1NR b K - 2 18 ; Best move: e6f5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8 and black rook at g8. Black pawn at a7, black king at c7 and black pawn at e7. Black pawn at c6, black bishop at e6, black queen at g6 and black knight at h6. White pawn at b5, white pawn at e5, white pawn at f5 and black pawn at g5. White pawn at b4, black pawn at d4 and black pawn at h4. White rook at b3, white pawn at c3, white bishop at d3 and white pawn at h3. White bishop at b2, white queen at c2, white pawn at d2 and white pawn at f2. White knight at b1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 2. Full move number is 18. Black to move.