r1b1kbnr/p5pp/2n1pp2/1NP5/8/3pB1PP/P1Q1PP1R/R2K1BN1 w k - 1 20
FEN state: r1b1kbnr/p5pp/2n1pp2/1NP5/8/3pB1PP/P1Q1PP1R/R2K1BN1 w k - 1 20 ; Best move: e2d3
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at g7 and black pawn at h7. Black knight at c6, black pawn at e6 and black pawn at f6. White knight at b5 and white pawn at c5. Black pawn at d3, white bishop at e3, white pawn at g3 and white pawn at h3. White pawn at a2, white queen at c2, white pawn at e2, white pawn at f2 and white rook at h2. White rook at a1, white king at d1, white bishop at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 20. White to move.