Illegal Move Exercise: The audio will lead you through a series of moves from the beginning of a game. Somewhere in there, a player will make an illegal move but the game will continue anyway. Find the illegal move.

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PGN for today's exercise:

1. d4 Nf6 2. c4 Bb4+ 3. Bd2 a5 4. a3 Bxd2+ 5. Qxd2 Ne4 6.Qc2 d5 *

And the answer is...
Black's move 2...Bb4+ was illegal because the Bishop is blocked by the pawn on e7.

Position Exercise: The audio will tell you where each of the pieces on the board are and whose turn it is. Find the best move!

To learn more about Don't Move Until You See It and get the free 5-day Conceptualizing Chess Series, head over to https://dontmoveuntilyousee.it/conceptualization

FEN for today's exercise:
6k1/5ppp/Bp2p3/8/P1rPn3/2n1PN2/5PPP/B4RK1 b - - 0 1

And the answer is...
1... Ne2+ 2. Kh1 Nxf2+ 3. Rxf2 Rc1+ 4. Ne1 Rxe1+ 5. Rf1 Rxf1#

Hybrid Puzzle: The audio will tell you where each of the pieces on the board are, then read a series of moves from that position. When prompted, try to identify the best next move.

To learn more about Don't Move Until You See It and get the free 5-day Conceptualizing Chess Series, head over to https://dontmoveuntilyousee.it/conceptualization

FEN for today's exercise:
8/8/8/2P1kp2/pR3b2/P5p1/1PK5/8 w - - 2 1

PGN for today's exercise:
Ivanchuk vs L'Ami (Wijk Aan Zee, 2026)

1. Rb8 Ke4 2. Rb4+ Ke3 3. Rxf4 *

And the answer is...
3... g2 (3... Kxf4? 4. c6 g2 5. c7 g1=Q 6. c8=Q { Black still has a big advantage, but the win is not so simple anymore due to many checks that White will have. }) 4. Rxf5 g1=Q