MESON Chess Problem Database
Problem Display
PID: 134412 (2n4K/3Q2p1/2pPP3/4kNP1/q4RPp/2PR4/3BN1B1/5r2 w - - 0 1)
Stojnic, Dragan
2nd HM., Sunningdale TATC Ty., 2010
#2
13 + 7
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Re3#
- 2.Re4#
- 1...Qc2
- 2.Re4#
- 1...Qb3
- 2.Re3#
- 2.Re4#
- 1...Qb5
- 2.Re3#
- 2.Re4#
- 1...Qa1
- 2.Re3#
- 2.Re4#
- 1...Qa2
- 2.Re3#
- 2.Re4#
- 1...Qa3
- 2.Re3#
- 2.Re4#
- 1...Qd4
- 2.cxd4#
- 1...Qe4
- 2.Rxe4#
- 1...Qa5
- 2.Re3#
- 2.Re4#
- 1...Qa6
- 2.Re3#
- 2.Re4#
- 1...Qa7
- 2.Re4#
- 1...Qa8
- 2.Re3#
- 2.Re4#
- 1...Sxd6
- 2.Qxd6#
- 1...c5
- 2.Rd5#
- 1...Qd1
- Tries
- 1.Sed4?
- threat
- 2.Qxg7#
- 1...Qxd4
- 2.cxd4#
- 1...Rf3
- 2.Sxf3#
- 1...Qa7
- 2.Sxc6#
- 1...g6
- 2.Qg7#
- 1...Se7!
- threat
- 1.Sxh4?
- threat
- 2.Sg6#
- 1...Qe4
- 2.Rxe4#
- 1...Rh1
- 2.Rf5#
- 1...g6
- 2.Sxg6#
- 1...Se7!
- threat
- 1.Se7?
- threat
- 2.Sg6#
- 1...Qe4
- 2.Rxe4#
- 1...g6
- 2.Sxg6#
- 1...Sxe7!
- threat
- 1.Rdd4?
- threat
- 2.Rfe4#
- 1...Qxd4
- 2.cxd4#
- 1...Rxf4
- 2.Bxf4#
- 1...Sxd6
- 2.Qxd6#
- 1...Qc2!
- threat
- 1.Rxa4?
- threat
- 2.Re3#
- 2.Re4#
- 1...Sxd6
- 2.Qxd6#
- 1...Rf4
- 2.Bxf4#
- 1...Rf3!
- threat
- 1.Rfd4?
- threat
- 2.Re3#
- 1...Qxd4
- 2.cxd4#
- 1...Sxd6
- 2.Qxd6#
- 1...Qc2
- 2.Re4#
- 1...Rf4
- 2.Bxf4#
- 1...Rf3!
- threat
- 1.c4?
- threat
- 2.Bc3#
- 2.Re3#
- 2.Re4#
- 1...Rxf4
- 2.Bxf4#
- 1...Sxd6
- 2.Bc3#
- 2.Qxd6#
- 1...Qc2
- 2.Re4#
- 1...Qb3
- 2.Re4#
- 1...Qa1
- 2.Re3#
- 2.Re4#
- 1...Qa3
- 2.Re4#
- 1...Qb4
- 2.Re3#
- 2.Re4#
- 1...Qa5
- 2.Re3#
- 2.Re4#
- 1...Qa7
- 2.Re4#
- 1...Rc1
- 2.Re3#
- 2.Re4#
- 1...Rf3
- 2.Bc3#
- 1...Qxc4!
- threat
- 1.Sed4?
- Keys
- 1.Sfd4!
- threat
- 2.Re3#
- 1...Qxd4
- 2.cxd4#
- 1...Rxf4
- 2.Bxf4#
- 1...Sxd6
- 2.Qxg7#
- 1...Rf3
- 2.Sxf3#
- 1...Qc2
- 2.Sxc6#
- threat
- 1.Sfd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- Q(b);N_GUARD::R1(F)
- Q(b);OGATE::P(D),XQ(b)
- Q(b);N_GUARD::R1(F),XQ(b)
- S(g);OGATE,XP(J)::QAB1(L),XS(g)
- P(e);N_GUARD::R1(E)
- Tries
- Try
- S(B);
- Threat
- QAB(L),XP(f)
- Vars
- Q(b);OGATE,XS(B)::P(D),XQ(b)
- R(a);N_GUARD::S(B),XR(a)
- Q(b);N_GUARD::S(B),XP(e)
- P(f);::QAB(L)
- Refutation
- S(g);
- Try
- S(H);XP(c)
- Threat
- S(H)
- Vars
- Q(b);N_GUARD::R1(F),XQ(b)
- R(a);N_GUARD,P_PINS(H)::R1(F)
- P(f);::S(H),XP(f)
- Refutation
- S(g);
- Try
- S(H);
- Threat
- S(H)
- Vars
- Q(b);N_GUARD::R1(F),XQ(b)
- P(f);::S(H),XP(f)
- Refutation
- S(g);XS(H)
- Try
- R(E);
- Threat
- R1(F)
- Vars
- Q(b);OGATE,XR(E)::P(D),XQ(b)
- R(a);OGATE,XR(F)::B(A),XR(a)
- S(g);OGATE,XP(J)::QAB1(L),XS(g)
- Refutation
- Q(b);
- Try
- R(F);XQ(b)
- Threat
- DUALS(2)
- Vars
- S(g);OGATE,XP(J)::QAB1(L),XS(g)
- R(a);N_GUARD::B(A),XR(a)
- Refutation
- R(a);
- Try
- R(F);
- Threat
- R(E)
- Vars
- Q(b);OGATE,XR(F)::P(D),XQ(b)
- S(g);OGATE,XP(J)::QAB1(L),XS(g)
- Q(b);N_GUARD::R1(F)
- R(a);N_GUARD::B(A),XR(a)
- Refutation
- R(a);
- Try
- P(D);
- Threat
- DUALS(3)
- Vars
- R(a);OGATE,XR(F)::B(A),XR(a)
- Q(b);::R1(F)
- R(a);::B(A)
- Refutation
- Q(b);XP(D)
- Try
- Actual
- S(H);
- Threat
- R(E)
- Vars
- Q(b);OGATE,XS(H)::P(D),XQ(b)
- R(a);OGATE,XR(F)::B(A),XR(a)
- S(g);SBLOCK,XP(J)::QAB(L),XP(f)
- R(a);N_GUARD::S(H),XR(a)
- Q(b);N_GUARD::S(H),XP(e)
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