# StrateGems

No. 38, Apr-Jun 2007

R0132 - , ,

StrateGems 38, Apr-Jun 2007

Dedicated to Guy Sobrecases

21+0. Color the pieces to create a stalemate

[4BKR1/3N2PR/4P1RP/3NPPPK/4PPPN/5P1Q/6P1/8]

Solution

R0133 -

StrateGems 38, Apr-Jun 2007

Add a whit Kink and 5 white Pawns for an IC (Demotion chess)

[8/8/8/8/8/1k6/8/8]

Solution

R0134 -

StrateGems 38, Apr-Jun 2007

9+9. Retract 5 moves, then mate in 1 move (Proca retractor, no forward defense, Anti-Circe)

[8/8/8/3p4/P1R2KP1/kbp1p1P1/NpppP2q/R6R]

Solution

P0205 -

StrateGems 38, Apr-Jun 2007

16+15. Proof game in 13.5 moves (Duellist chess)

[r1bqkbnr/pp3ppp/4p3/3pP3/2pK4/P7/P1PP1PPP/RNBQ1BNR]

Solution

P0206 -

StrateGems 38, Apr-Jun 2007

13+16. Proof game in 15.5 moves (Duellist chess)

[rnbq1bnr/pk1p2pp/1p2p3/1P3p2/K1p2P2/8/P1PPP1PP/R4BNR]

Solution

P0207 -

StrateGems 38, Apr-Jun

13+15. Proof game in 17.0 moves (Circe Parrain)

[1Bb1k1nR/1r4r1/8/4N1q1/3n4/pppppppp/2PP1PPP/3QKBNR]

Solution

Demotion chess: Any piece (not pawn) that sets foot on the 8th rank is immediately reborn as a pawn on the 2nd rank of the same file; promoting pawns are excempted during the promotion move.

Duellist chess: Once a unit has moved, it must continue moving turn after turn, as long as it has legal moves.

ParrainCirce: When captured, a piece is reborn on the square that has the same distance and direction from the capture square as the distance and direction between the departure and arrival square of the next move. E.g. 1. d4 e5 2. dxe5 Qe7[+bPf4]