MESON Chess Problem Database
Problem Display
PID: 268973 (1n6/1R2NN2/2p5/3pr3/rP1kB1QB/p2P3K/2R2P1b/7n w - - 0 1)
Dyachuk, Vasyl Vasilovich
Kopyl, Valery Volodimirovich
14/15 Place, 09. WCCT, 2012-2013
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxb4
- 2.Rxb4#
- 1...Rf5
- 2.Sxf5#
- 1...Re6
- 2.Sf5#
- 1...Sxf2+
- 2.Bxf2#
- 1...Sa6
- 2.Sxc6#
- 1...Sd7
- 2.Sxc6#
- 1...Rxb4
- Tries
- 1.Sxd5?
- threat
- 2.Rc4#
- 1...Sxf2+
- 2.Bxf2#
- 1...Rxb4
- 2.Rxb4#
- 1...Rxe4
- 2.Qxe4#
- 1...cxd5!
- threat
- 1.Bxd5+?
- 1...Kxd3
- 2.Qd1#
- 2.Qc4#
- 1...Re4
- 2.Qxe4#
- 1...Bf4!
- 1...Kxd3
- 1.Bf6?
- threat
- 2.Sf5#
- 1...dxe4
- 2.Qxe4#
- 1...Sg3
- 2.Bxe5#
- 1...Sxf2+!
- threat
- 1.Rd7?
- threat
- 2.Rc4#
- 1...Sxf2+
- 2.Bxf2#
- 1...Rxe4
- 2.Qxe4#
- 1...Sxd7
- 2.Sxc6#
- 1...Rxb4!
- threat
- 1.Qe2?
- threat
- 2.Qe3#
- 1...Sxf2+
- 2.Bxf2#
- 2.Qxf2#
- 1...Rxe4
- 2.Sf5#
- 1...Bf4!
- threat
- 1.Qf3?
- threat
- 2.Qe3#
- 1...Sxf2+
- 2.Bxf2#
- 2.Qxf2#
- 1...Rxe4
- 2.Sf5#
- 1...Bf4!
- threat
- 1.Qd7?
- threat
- 2.Rc4#
- 1...Sxf2+
- 2.Bxf2#
- 1...Rxb4
- 2.Rxb4#
- 1...Sxd7
- 2.Sxc6#
- 1...Rxe4!
- threat
- 1.Qg7?
- threat
- 2.Sf5#
- 1...Sxf2+
- 2.Bxf2#
- 1...Sg3
- 2.Qxe5#
- 1...dxe4!
- threat
- 1.Sxd5?
- Keys
- 1.Qd1!
- threat
- 2.Qa1#
- 1...Sxf2+
- 2.Bxf2#
- 1...Rxb4
- 2.Rxb4#
- 1...Rxe4
- 2.Sf5#
- 1...dxe4
- 2.Rc4#
- threat
- 1.Qd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(d);OGATE,XP(E)::R(I),XR(d)
- R(g);N_GUARD::S(J),XR(g)
- R(g);N_GUARD::S(J)
- S(a);CHECK,OGATE,XP(B)::B(H),XS(a)
- S(i);N_GUARD::S(J),XP(h)
- Tries
- Try
- S(J);XP(f)
- Threat
- R1(A)
- Vars
- S(a);CHECK,OGATE,XP(B)::B(H),XS(a)
- R(d);OGATE,XP(E)::R(I),XR(d)
- R(g);OGATE,P_SPINR(g),XB(F)::QAR1(G),XR(g)
- Refutation
- P(h);XS(J)
- Try
- B(F);CHECK,XP(f)
- Vars
- R(g);N_GUARD,P_SPINR(g)::QAR1(G),XR(g)
- Refutation
- B(b);P_SPINB(b)
- Try
- B(H);P_PINR(g)
- Threat
- S(J)
- Vars
- P(f);OGATE,P_SPINP(f),XB(F)::QAR1(G),XP(f)
- S(a);S_CUTB(b)::B(H),XR(g)
- Refutation
- S(a);CHECK,XP(B)
- Try
- R(I);P_PINP(f)
- Threat
- R1(A)
- Vars
- S(a);CHECK,OGATE,XP(B)::B(H),XS(a)
- R(g);OGATE,P_SPINR(g),XB(F)::QAR1(G),XR(g)
- S(i);N_GUARD,N_SPINP(f),XR(I)::S(J),XP(h)
- Refutation
- R(d);XP(E)
- Try
- Q(G);
- Threat
- QAB1(G)
- Vars
- R(g);N_GUARD,XB(F)::S(J)
- Refutation
- B(b);
- Try
- Q(G);
- Threat
- QAB1(G)
- Vars
- R(g);N_GUARD,XB(F)::S(J)
- Refutation
- B(b);
- Try
- Q(G);P_PINP(f)
- Threat
- R1(A)
- Vars
- S(a);CHECK,OGATE,XP(B)::B(H),XS(a)
- R(d);OGATE,XP(E)::R(I),XR(d)
- S(i);N_GUARD,N_SPINP(f),XQ(G)::S(J),XP(h)
- Refutation
- R(g);XB(F)
- Try
- Q(G);P_PINR(g)
- Threat
- S(J)
- Vars
- S(a);CHECK,OGATE,XP(B)::B(H),XS(a)
- S(a);S_CUTB(b)::QAB1(G),XR(g)
- Refutation
- P(f);XB(F)
- Try
- Actual
- Q(G);
- Threat
- QAB(G)
- Vars
- S(a);CHECK,OGATE,XP(B)::B(H),XS(a)
- R(d);OGATE,XP(E)::R(I),XR(d)
- R(g);N_GUARD,XB(F)::S(J)
- P(f);N_GUARD,XB(F)::R1(A)
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