MESON Chess Problem Database
Problem Display
PID: 71418 (n3BK2/r3p1pN/1p2kP2/1R3N1n/p2Pp3/Q7/P6q/B7 w - - 0 1)
Fillery, William Edmund Frank
Chess, 1951
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Re5#
- 1...Qe5
- 2.Rxe5#
- 1...Qh1
- 2.Re5#
- 1...Qxa2
- 2.Re5#
- 2.Qxa2#
- 1...Qb2
- 2.Re5#
- 1...Qc2
- 2.Re5#
- 1...Qd2
- 2.Re5#
- 1...Qe2
- 2.Re5#
- 1...Qf2
- 2.Re5#
- 1...Qg2
- 2.Re5#
- 1...Qh3
- 2.Re5#
- 1...Qh4
- 2.Re5#
- 1...Ra5
- 2.Qxe7#
- 1...Ra6
- 2.Qxe7#
- 1...Rd7
- 2.Bf7#
- 1...Sg3
- 2.Sxg7#
- 2.Re5#
- 1...Sf4
- 2.Sxg7#
- 2.Re5#
- 1...Sxf6
- 2.Sxg7#
- 2.Sg5#
- 1...Sc7
- 2.Qxe7#
- 1...Qg1
- Tries
- 1.Se3?
- threat
- 2.d5#
- 1...Qxa2
- 2.Re5#
- 1...Sxf6
- 2.Sg5#
- 1...Qe5
- 2.Rxe5#
- 1...Qb2
- 2.Re5#
- 1...Qd2
- 2.Re5#
- 1...Rd7
- 2.Bf7#
- 1...Sf4
- 2.Re5#
- 1...Sc7
- 2.Qxe7#
- 1...Qd6!
- threat
- 1.Sg3?
- threat
- 2.Re5#
- 2.d5#
- 1...Qxa2
- 2.Re5#
- 1...Sxg3
- 2.Re5#
- 1...Sxf6
- 2.Sg5#
- 2.Re5#
- 1...exf6
- 2.d5#
- 1...gxf6
- 2.d5#
- 1...Qb2
- 2.Re5#
- 1...Qd2
- 2.Re5#
- 1...Ra5
- 2.Qxe7#
- 2.d5#
- 1...Rd7
- 2.Bf7#
- 2.Re5#
- 1...Sf4
- 2.Re5#
- 1...Sc7
- 2.Re5#
- 2.Qxe7#
- 1...Qxg3!
- threat
- 1.Sh6?
- threat
- 2.d5#
- 1...Qxa2
- 2.Re5#
- 1...Sxf6
- 2.Sg5#
- 1...Qe5
- 2.Rxe5#
- 1...Qd6
- 2.Qh3#
- 1...Qb2
- 2.Re5#
- 1...Qd2
- 2.Re5#
- 1...Rd7
- 2.Bf7#
- 1...Sf4
- 2.Re5#
- 1...Sc7
- 2.Qxe7#
- 1...gxh6!
- threat
- 1.Sxe7?
- threat
- 2.d5#
- 1...Qxa2
- 2.Re5#
- 1...Rxe7
- 2.Qxe7#
- 1...Sxf6
- 2.Sg5#
- 1...Qe5
- 2.Rxe5#
- 1...Qd6
- 2.Qh3#
- 1...Qb2
- 2.Re5#
- 1...Qd2
- 2.Re5#
- 1...Rd7
- 2.Bf7#
- 1...Sf4
- 2.Re5#
- 1...Sc7!
- threat
- 1.Qh3?
- threat
- 2.d5#
- 1...Qxa2
- 2.Re5#
- 1...Qxh3
- 2.Re5#
- 1...Sxf6
- 2.Sg5#
- 1...Qd6
- 2.Se3#
- 2.Sg3#
- 2.Sh4#
- 2.Sh6#
- 2.Sxe7#
- 2.Sxg7#
- 1...Qe5
- 2.Rxe5#
- 1...Qb2
- 2.Re5#
- 1...Qd2
- 2.Re5#
- 1...Rd7
- 2.Bf7#
- 1...Sf4
- 2.Re5#
- 1...Sc7!
- threat
- 1.fxg7?
- threat
- 2.g8Q#
- 2.g8B#
- 1...Qxa2
- 2.Re5#
- 2.Qxa2#
- 2.g8Q#
- 2.g8B#
- 1...Sxg7
- 2.Sxg7#
- 1...Qe5
- 2.Rxe5#
- 1...Qd6
- 2.g8Q#
- 2.g8B#
- 1...Qg1
- 2.Re5#
- 1...Qf4
- 2.g8Q#
- 2.g8B#
- 1...Qc7
- 2.g8Q#
- 2.g8B#
- 1...Qb8
- 2.g8Q#
- 2.g8B#
- 1...Qh1
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Qb2
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Qc2
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Qd2
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Qe2
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Qf2
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Qg2
- 2.Re5#
- 1...Qh3
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Qh4
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Ra5
- 2.Qxe7#
- 2.g8Q#
- 2.g8B#
- 1...Ra6
- 2.Qxe7#
- 2.g8Q#
- 2.g8B#
- 1...Rb7
- 2.g8Q#
- 2.g8B#
- 1...Rc7
- 2.g8Q#
- 2.g8B#
- 1...Rd7
- 2.Bf7#
- 2.g8Q#
- 2.g8B#
- 1...Sg3
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Sf4
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...Sf6
- 2.Sg5#
- 1...Sc7
- 2.Qxe7#
- 2.g8Q#
- 2.g8B#
- 1...e3
- 2.g8Q#
- 2.g8B#
- 1...Qg3!
- threat
- 1.Se3?
- Keys
- 1.Sh4!
- threat
- 2.d5#
- 1...Qxa2
- 2.Re5#
- 1...Qxh4
- 2.Re5#
- 1...Sxf6
- 2.Sg5#
- 1...Qe5
- 2.Rxe5#
- 1...Qd6
- 2.Qh3#
- 1...Qb2
- 2.Re5#
- 1...Qd2
- 2.Re5#
- 1...Rd7
- 2.Bf7#
- 1...Sf4
- 2.Re5#
- 1...Sc7
- 2.Qxe7#
- threat
- 1.Sh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::R1(E)
- Q(a);N_GUARD::R1(E),XQ(a)
- R(g);N_GUARD::QAR1(C),XP(h)
- R(g);SBLOCK::B(I)
- S(j);S_CUTR(g)::QAR1(C),XP(h)
- Tries
- Try
- S(F);
- Threat
- P(D)
- Vars
- Q(a);N_GUARD,XP(B)::R1(E)
- S(d);SBLOCK,XP(G)::S(H)
- Q(a);N_GUARD::R1(E),XQ(a)
- Q(a);N_GUARD::R1(E)
- R(g);SBLOCK::B(I)
- S(d);S_CUTQ(a)::R1(E)
- S(j);S_CUTR(g)::QAR1(C),XP(h)
- Refutation
- Q(a);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(B)::R1(E)
- S(d);XS(F)::R1(E)
- P(h);XP(G)::P(D)
- P(i);XP(G)::P(D)
- Q(a);::R1(E)
- S(d);::R1(E)
- Refutation
- Q(a);XS(F)
- Try
- S(F);
- Threat
- P(D)
- Vars
- Q(a);N_GUARD,XP(B)::R1(E)
- S(d);SBLOCK,XP(G)::S(H)
- Q(a);N_GUARD::R1(E),XQ(a)
- Q(a);N_GUARD,SBLOCK::QAB(C)
- Q(a);N_GUARD::R1(E)
- R(g);SBLOCK::B(I)
- S(d);S_CUTQ(a)::R1(E)
- S(j);S_CUTR(g)::QAR1(C),XP(h)
- Refutation
- P(i);XS(F)
- Try
- S(F);XP(h)
- Threat
- P(D)
- Vars
- Q(a);N_GUARD,XP(B)::R1(E)
- R(g);OGATE,XS(F)::QAR1(C),XR(g)
- S(d);SBLOCK,XP(G)::S(H)
- Q(a);N_GUARD::R1(E),XQ(a)
- Q(a);N_GUARD,P_PINS(F),SBLOCK::QAB(C)
- Q(a);N_GUARD::R1(E)
- R(g);SBLOCK::B(I)
- S(d);S_CUTQ(a)::R1(E)
- Refutation
- S(j);
- Try
- Q(C);
- Threat
- P(D)
- Vars
- Q(a);N_GUARD,XP(B)::R1(E)
- Q(a);N_GUARD,XQ(C)::R1(E)
- S(d);SBLOCK,XP(G)::S(H)
- Q(a);N_GUARD::R1(E),XQ(a)
- Q(a);N_GUARD::R1(E)
- R(g);SBLOCK::B(I)
- S(d);S_CUTQ(a)::R1(E)
- Refutation
- S(j);
- Try
- P(G);XP(i)
- Threat
- P=Q
- Vars
- S(d);XP(G)::S(F),XS(d)
- Q(a);N_GUARD::R1(E),XQ(a)
- Q(a);::P=Q
- Q(a);N_GUARD::R1(E)
- Q(a);P_PINS(F)::P=Q
- Q(a);P_PINB(I)::P=Q
- R(g);::P=Q
- S(d);SBLOCK::S(H)
- P(c);::P=Q
- Refutation
- Q(a);
- Try
- Actual
- S(F);
- Threat
- P(D)
- Vars
- Q(a);N_GUARD,XP(B)::R1(E)
- Q(a);N_GUARD,XS(F)::R1(E)
- S(d);SBLOCK,XP(G)::S(H)
- Q(a);N_GUARD::R1(E),XQ(a)
- Q(a);N_GUARD,SBLOCK::QAB(C)
- Q(a);N_GUARD::R1(E)
- R(g);SBLOCK::B(I)
- S(d);S_CUTQ(a)::R1(E)
- S(j);S_CUTR(g)::QAR1(C),XP(h)
Developed and maintained by Brian Stephenson.
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