MESON Chess Problem Database
Problem Display
PID: 188444 (4R3/2Bpbp2/R2rk3/pN3nP1/2Kp2qr/Q2Np2B/8/8 w - - 0 1)
du Beau, Claude
To Alain White, 1945
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Rxd6#
- 2.Qxd6#
- 1...Qe2
- 2.Rxd6#
- 2.Qxd6#
- 1...Qf3
- 2.Rxd6#
- 2.Qxd6#
- 1...Qh5
- 2.Rxd6#
- 2.Qxd6#
- 1...Qg1
- 2.Rxd6#
- 2.Qxd6#
- 1...Qg2
- 2.Rxd6#
- 2.Qxd6#
- 1...Qe4
- 2.Rxd6#
- 2.Qxd6#
- 1...Qxg5
- 2.Rxd6#
- 2.Qxd6#
- 1...Rxa6
- 2.Sc5#
- 1...Rb6
- 2.Sc5#
- 1...Rc6+
- 2.Sc5#
- 1...Sg3
- 2.Sxd4#
- 1...Sh6
- 2.Sxd4#
- 1...Sg7
- 2.Sxd4#
- 1...Qd1
- Tries
- 1.Bb8?
- threat
- 2.Sc7#
- 1...Rc6+
- 2.Sc5#
- 1...Qxg5
- 2.Rxd6#
- 2.Qxd6#
- 1...Sg3
- 2.Sxd4#
- 1...Sh6
- 2.Sxd4#
- 1...Sg7
- 2.Sxd4#
- 1...f6!
- threat
- 1.Rxe7+?
- 1...Sxe7
- 2.Sxd4#
- 1...Kxe7!
- 1...Sxe7
- 1.Qc5?
- threat
- 2.Qd5#
- 2.Qe5#
- 1...Qxg5
- 2.Rxd6#
- 2.Qxd6#
- 2.Qe5#
- 1...f6
- 2.Qd5#
- 1...Qf3
- 2.Rxd6#
- 2.Qxd6#
- 2.Qe5#
- 1...Qg2
- 2.Bxf5#
- 2.Rxd6#
- 2.Qxd6#
- 2.Qe5#
- 2.Qxf5#
- 1...Qg3
- 2.Bxf5#
- 2.Qd5#
- 2.Qxf5#
- 1...Qe4
- 2.Rxd6#
- 2.Qxd6#
- 1...Qf4
- 2.Qd5#
- 1...Rc6!
- threat
- 1.Qb3?
- threat
- 2.Kc5#
- 1...Rc6+
- 2.Sc5#
- 1...Qxg5
- 2.Rxd6#
- 1...Rxa6
- 2.Sc5#
- 1...Sg3
- 2.Sxd4#
- 1...Sh6
- 2.Sxd4#
- 1...Sg7
- 2.Sxd4#
- 1...Qd1
- 2.Rxd6#
- 1...Qf3
- 2.Rxd6#
- 1...Qg2
- 2.Rxd6#
- 1...Qe4
- 2.Rxd6#
- 1...Rb6
- 2.Sc5#
- 1...a4!
- threat
- 1.Bb8?
- Keys
- 1.Qa2!
- threat
- 2.Kc5#
- 1...Rc6+
- 2.Sc5#
- 1...Qxg5
- 2.Rxd6#
- 1...Rxa6
- 2.Sc5#
- 1...Sg3
- 2.Sxd4#
- 1...Sh6
- 2.Sxd4#
- 1...Sg7
- 2.Sxd4#
- 1...Qd1
- 2.Rxd6#
- 1...Qe2
- 2.Rxd6#
- 1...Qf3
- 2.Rxd6#
- 1...Qg2
- 2.Rxd6#
- 1...Qe4
- 2.Rxd6#
- 1...Rb6
- 2.Sc5#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(g);N_SPINR(g),XR(G)::S(B)
- R(g);::S(B)
- R(g);CHECK::S(B)
- S(f);N_GUARD,P_SPINQ(c)::S(E),XP(b)
- Tries
- Try
- B(H);
- Threat
- S(E)
- Vars
- R(g);CHECK::S(B)
- S(f);N_GUARD,P_SPINQ(c)::S(E),XP(b)
- Refutation
- P(k);
- Try
- R(I);CHECK,XB(j)
- Vars
- S(f);P_SPINQ(c),SBLOCK,XR(I)::S(E),XP(b)
- Refutation
- K(h);P-FLIGHT,XR(I)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(k);::QAB1(A)
- Q(c);P_SPINS(f)::QAB1(A)
- Refutation
- R(g);P_PINQ(A)
- Try
- Q(A);
- Threat
- QAB(A)+K(D)
- Vars
- R(g);CHECK::S(B)
- Q(c);P_SPINS(f),XP(F)::R1(G),XR(g)
- R(g);N_SPINR(g),XR(G)::S(B)
- S(f);N_GUARD,P_SPINQ(c)::S(E),XP(b)
- Q(c);P_SPINS(f)::R1(G),XR(g)
- R(g);::S(B)
- Refutation
- P(e);
- Try
- Actual
- Q(A);
- Threat
- QAB(A)+K(D)
- Vars
- R(g);CHECK::S(B)
- Q(c);P_SPINS(f),XP(F)::R1(G),XR(g)
- R(g);N_SPINR(g),XR(G)::S(B)
- S(f);N_GUARD,P_SPINQ(c)::S(E),XP(b)
- Q(c);P_SPINS(f)::R1(G),XR(g)
- Q(c);P_PINS(B),P_SPINS(f)::R1(G),XR(g)
- R(g);::S(B)
Developed and maintained by Brian Stephenson.
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