Use every sheet the same way
Identify, restrict, support, verify
Visual chess lesson
Back-rank mate
White to move. The black king has no escape square. Find mate in one.
Reveal the explanation
1.Re8# mates. The rook controls the eighth rank and Black’s own pawns on f7, g7 and h7 prevent the king from escaping.
Verified line: Re8#
6k1/5ppp/8/8/8/8/8/4R1K1 w - - 0 1 ↗Find the next job
Use only the current step rather than calculating the entire mate from the start.
Restrict the king
Each move should reduce the enemy king’s available squares or bring your king closer.
Check stalemate
Before a quiet move, confirm that the defender retains at least one legal move.
Sheet 1
King and queen: the three-step method
Restrict the king
Use the queen to confine the king to one region without giving unnecessary checks.
Visual chess lesson
Ladder mate
Notice how the two rooks create adjacent barriers.
Reveal the explanation
The rook on h6 checks along the h-file. The rook on g7 controls g8 and the king on f6 protects g7, leaving Black no legal reply.
7k/6R1/5K1R/8/8/8/8/8 b - - 0 1 ↗Visual chess lesson
Arabian mate
Why can the king neither capture the rook nor escape to g8?
Reveal the explanation
The rook on h7 gives check. The knight on f6 protects h7 and controls g8, while the rook controls g7.
7k/7R/5N2/8/8/8/8/6K1 b - - 0 1 ↗Bring the king up
Use the king to take the opposition and force the defender backwards.
Give the final rook check
With the enemy king on the edge and your king controlling the escape squares, check along the rank or file.
Keep sufficient checking distance: place the rook far enough from the enemy king that it cannot be attacked or captured.
Sheets 4 and 5
Promote the pawn
Visual chess lesson
Square rule
Can the black king catch the pawn without help?
Reveal the explanation
No. Draw the pawn’s square from c5 to c8 and across to f8/f5. The black king on h8 is outside it, so after 1.c6 the pawn promotes before the king can catch it.
Verified line: c6
7k/8/8/2P5/8/8/8/K7 w - - 0 1 ↗Visual chess lesson
Opposition
The kings face each other with one square between them. Who has the opposition?
Reveal the explanation
Black has the opposition because White must move. White’s king must give way, allowing Black’s king to resist the advance.
8/4k3/8/4K3/4P3/8/8/8 w - - 0 1 ↗Use the rule of the square
Draw an imaginary square from the pawn to the promotion rank. If the defending king can enter, it can catch the pawn without help.
Escort from the front
Bring the king ahead of the pawn, use the opposition and advance the pawn only after the king has gained the critical square.
Queen-and-king coordination
After promotion, use the knight’s-move rule to restrict the enemy king with the queen, then bring your king closer.
Critical endings
Two bishops and stalemate warnings
Visual chess lesson
Smothered mate
Why is the knight’s check decisive?
Reveal the explanation
The knight on f7 attacks h8. The king is completely surrounded by its own rook and pawns, so it has no legal square and the knight cannot be blocked.
6rk/5Npp/8/8/8/8/8/6K1 b - - 0 1 ↗Visual chess lesson
Anastasia’s mate
Identify how the knight and rook divide the work.
Reveal the explanation
The rook checks along the h-file. The knight on e7 controls g8, while Black’s pawn on g7 removes the other escape square.
7k/4N1p1/8/8/8/8/8/6KR b - - 0 1 ↗Visual chess lesson
Opera mate
How do the bishop and rook prevent every escape?
Reveal the explanation
The rook on e1 checks along the e-file and the bishop on b5 also attacks e8. Black's own rooks and pawns occupy the surrounding escape squares, leaving the king with no legal reply.
3rkr2/3p1p2/8/1B6/8/8/8/4R1K1 b - - 0 1 ↗Two bishops mate
Coordinate the bishops on adjacent diagonals to make a shrinking barrier, drive the king towards a corner and bring your king to support the final net.
Corner stalemate
A queen or rook can remove every square without giving check. Leave a legal move until your king is ready.
Blocked-pawn stalemate
A defending king with no squares and a blocked pawn may already be out of moves. Verify before advancing or capturing.
Lone-pawn stalemate
When the last pawn cannot move and the king has no square, a careless quiet move draws immediately.
