pawn checkmate?
[Site "Chess.com"] [White "pokefan15448"] [Black "Cale302"] [Result "0-1"] [WhiteElo "132"] [BlackElo "147"] [TimeControl "600"] 1. Na3 e5 2. e4 Nc6 3. Bb5 Nd4 4. Bc4 Qh4 5. g3 Qxe4+ 6. Ne2 Qxh1+ 7. Ng1 Qxg1+ 8. Bf1 Bb4 9. Nc4 Nf6 10. Ne3 Nf3+ 11. Ke2 Ng4 12. Kxf3 Nxh2+ 13. Ke4 Qxf2 14. Ng4 Qg2+ 15. Kxe5 O-O 16. Nxh2 Qxh2 17. Qh5 Qxg3+ 18. Kf5 Bxd2 19. Bxd2 d5# 0-1
If you saw that the King had only one available move, Moving the pawn not one, but two spaces made a discovered check and took away the only available move- you did great. If it just happened, then you have just learned to keep an eye on a King/piece with limited space to move and see what can be done. Congratulations
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