MESON Chess Problem Database
Problem Display
PID: 180361 (Br6/n2P3b/P3R3/2kN1p1R/P1p4p/1nP3Q1/KB3NPq/2b5 w - - 0 1)
Lider, Valentin Viktorovich
Sinfonie Scacchistiche, 1986
#2
13 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Qd6#
- 1...Qh1
- 2.Qd6#
- 1...Qxg2
- 2.Qd6#
- 1...Qh3
- 2.Qd6#
- 1...Rb4
- 2.cxb4#
- 1...Sd2
- 2.Qe3#
- 1...Sd4
- 2.cxd4#
- 1...Qg1
- Tries
- 1.Se3?
- threat
- 2.Se4#
- 1...Qxg2
- 2.Qd6#
- 1...Sc6
- 2.Rxc6#
- 1...Sd2!
- threat
- 1.Sb4?
- threat
- 2.Se4#
- 1...Qxg2
- 2.Qd6#
- 1...Sc6
- 2.Rxc6#
- 1...Sd2
- 2.Qe3#
- 1...Bg5!
- threat
- 1.Sf4?
- threat
- 2.Se4#
- 1...Sc6
- 2.Rxc6#
- 1...Sd2
- 2.Qe3#
- 1...Qxg2!
- threat
- 1.Sf6?
- threat
- 2.S2e4#
- 2.S6e4#
- 1...Qxg2
- 2.Qd6#
- 1...Rxa8
- 2.S2e4#
- 1...Sc6
- 2.Rxc6#
- 1...Rb7
- 2.S2e4#
- 1...Sd2
- 2.Qe3#
- 1...Bg5!
- threat
- 1.Sc7?
- threat
- 2.Se4#
- 1...Qxg2
- 2.Qd6#
- 1...Sc6
- 2.Rxc6#
- 1...Sd2
- 2.Qe3#
- 1...Bg5!
- threat
- 1.Se7?
- threat
- 2.Se4#
- 1...Qxg2
- 2.Qd6#
- 1...Sc6
- 2.Rxc6#
- 1...Sd2
- 2.Qe3#
- 1...Bg5!
- threat
- 1.Ba3+?
- 1...Rb4
- 2.Bxb4#
- 1...Bxa3!
- 1...Rb4
- 1.Rxf5?
- threat
- 2.Se4#
- 1...Qxg2
- 2.Qd6#
- 1...Sd2
- 2.Qe3#
- 1...Bxf5!
- threat
- 1.Qe5?
- threat
- 2.Sf4#
- 1...Qxg2
- 2.Qd6#
- 1...Qf4
- 2.Sxf4#
- 1...Bf4
- 2.Sxf4#
- 1...Sc6
- 2.Rxc6#
- 1...f4
- 2.Se3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qd6#
- 1...Qxe5!
- threat
- 1.Qc7+?
- 1...Sc6
- 2.Qxc6#
- 1...Qxc7!
- 1...Sc6
- 1.Qxb8?
- threat
- 2.Qxa7#
- 2.Qb4#
- 2.Qb6#
- 1...Sc6
- 2.Qb5#
- 1...Qd6
- 2.Qxd6#
- 2.Qb4#
- 1...Qc7
- 2.Qb4#
- 1...Sb5
- 2.Qxb5#
- 2.Qb6#
- 1...Sc8
- 2.Qb4#
- 2.Qb5#
- 1...Qxb8!
- threat
- 1.Qe3+?
- 1...Sd4
- 2.Qxd4#
- 2.cxd4#
- 1...Bxe3!
- 1...Sd4
- 1.Se3?
- Keys
- 1.Sb6!
- threat
- 2.Se4#
- 1...Qxg2
- 2.Qd6#
- 1...Sc6
- 2.Rxc6#
- 1...Bg5
- 2.Ba3#
- 1...Sd2
- 2.Qe3#
- threat
- 1.Sb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(b);N_GUARD::QAB1(F)
- Q(b);N_GUARD,XP(D)::QAB1(F)
- R(j);OGATE::P(E),XR(j)
- S(c);N_GUARD,S_CUTB(a)::QAB(F)
- S(c);OGATE::P(E),XS(c)
- Tries
- Try
- S(H);P_PINP(g)
- Threat
- S(C)
- Vars
- Q(b);N_GUARD,XP(D)::QAB1(F)
- S(h);N_GUARD::R1(K),XS(h)
- Refutation
- S(c);
- Try
- S(H);P_PINP(g)
- Threat
- S(C)
- Vars
- Q(b);N_GUARD,XP(D)::QAB1(F)
- S(h);N_GUARD::R1(K),XS(h)
- S(c);N_GUARD,S_CUTB(a)::QAB(F)
- Refutation
- B(a);N_SPINP(g)
- Try
- S(H);P_PINP(g)
- Threat
- S(C)
- Vars
- S(h);N_GUARD::R1(K),XS(h)
- S(c);N_GUARD,S_CUTB(a)::QAB(F)
- Refutation
- Q(b);XP(D)
- Try
- S(H);P_PINP(g)
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD,XP(D)::QAB1(F)
- R(j);XB(M)::S(C)
- S(h);N_GUARD::R1(K),XS(h)
- R(j);::S(C)
- S(c);N_GUARD,S_CUTB(a)::QAB(F)
- Refutation
- B(a);N_SPINP(g)
- Try
- S(H);P_PINP(g)
- Threat
- S(C)
- Vars
- Q(b);N_GUARD,XP(D)::QAB1(F)
- S(h);N_GUARD::R1(K),XS(h)
- S(c);N_GUARD,S_CUTB(a)::QAB(F)
- Refutation
- B(a);N_SPINP(g)
- Try
- S(H);P_PINP(g)
- Threat
- S(C)
- Vars
- Q(b);N_GUARD,XP(D)::QAB1(F)
- S(h);N_GUARD::R1(K),XS(h)
- S(c);N_GUARD,S_CUTB(a)::QAB(F)
- Refutation
- B(a);N_SPINP(g)
- Try
- B(B);CHECK
- Vars
- R(j);N_GUARD,P_SPINR(j)::B(B),XR(j)
- Refutation
- B(a);XB(B)
- Try
- R(I);XP(g)
- Threat
- S(C)
- Vars
- Q(b);N_GUARD,XP(D)::QAB1(F)
- S(c);N_GUARD,S_CUTB(a)::QAB(F)
- Refutation
- B(i);XR(I)
- Try
- Q(F);
- Threat
- QAR(F)+S(H)
- Vars
- Q(b);N_GUARD,XP(D)::QAB1(F)
- Q(b);::QAR(F)+S(H),XQ(b)
- B(a);::QAR(F)+S(H),XB(a)
- S(h);N_GUARD::R1(K),XS(h)
- Refutation
- Q(b);XQ(F)
- Try
- Q(F);CHECK
- Vars
- S(h);N_GUARD,P_SPINS(h)::QAR1(F),XS(h)
- Refutation
- Q(b);XQ(F)
- Try
- Q(F);XR(j)
- Threat
- DUALS(3)
- Vars
- S(h);N_GUARD::QAR1(F)
- Q(b);::QAB1(F)
- Refutation
- Q(b);XQ(F)
- Try
- Q(F);CHECK
- Refutation
- B(a);XQ(F)
- Try
- Actual
- S(H);P_PINP(g)
- Threat
- S(C)
- Vars
- Q(b);N_GUARD,XP(D)::QAB1(F)
- S(h);N_GUARD::R1(K),XS(h)
- B(a);N_GUARD,N_SPINP(g)::B(B)
- S(c);N_GUARD,S_CUTB(a)::QAB(F)
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