MESON Chess Problem Database
Problem Display
PID: 56896 (KB6/pQ6/3NR3/2pp3p/2Bk1p1r/R7/6q1/1b1N4 w - - 0 1)
Rukhlis, Efim Naumovich
1st Prize, Problemista, 1965
#2
8 + 9
| 3772 | FIDE Album (1965-1967) | 1976 |
| 133 | The Problemist Supplement | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Qxd5#
- 2.Qb2#
- 2.Qg7#
- 1...Qh1
- 2.Qb2#
- 2.Qg7#
- 1...Qf3
- 2.Qg7#
- 1...Qh3
- 2.Qxd5#
- 2.Qg7#
- 1...Qe4
- 2.Qb2#
- 1...Qg1
- 2.Qxd5#
- 2.Qb2#
- 1...Qa2
- 2.Qxd5#
- 2.Qg7#
- 1...Qb2
- 2.Qxd5#
- 2.Qxb2#
- 2.Qg7#
- 1...Qc2
- 2.Qxd5#
- 2.Qg7#
- 1...Qd2
- 2.Qxd5#
- 2.Qg7#
- 1...Qe2
- 2.Qxd5#
- 1...Qf2
- 2.Qxd5#
- 2.Qg7#
- 1...Qh2
- 2.Qxd5#
- 2.Qg7#
- 1...Qg3
- 2.Qxd5#
- 1...Qg4
- 2.Qxd5#
- 2.Qb2#
- 1...Qg5
- 2.Qb2#
- 1...Qg6
- 2.Qxd5#
- 2.Qb2#
- 1...Qg7
- 2.Qxd5#
- 2.Qb2#
- 2.Qxg7#
- 1...Qg8
- 2.Qxd5#
- 2.Qb2#
- 1...Ba2
- 2.Rd3#
- 1...Bc2
- 2.Qb2#
- 1...Bd3
- 2.Rxd3#
- 1...Bg6
- 2.Qg7#
- 1...f3
- 2.Qxd5#
- 1...dxc4
- 2.Sb5#
- 1...Qf1
- Tries
- 1.Sb2?
- threat
- 2.Sb5#
- 1...Qxb2
- 2.Qxd5#
- 2.Qxb2#
- 2.Qg7#
- 1...a6!
- threat
- 1.Sf2?
- threat
- 2.Qb2#
- 1...Qxf2
- 2.Qxd5#
- 2.Qg7#
- 1...dxc4
- 2.Sb5#
- 1...Qf3
- 2.Qg7#
- 1...Qh3
- 2.Qxd5#
- 2.Qg7#
- 1...Qg3
- 2.Qxd5#
- 1...Rh3!
- threat
- 1.Sc3?
- threat
- 2.Scb5#
- 1...Qb2
- 2.Qxd5#
- 2.Qg7#
- 1...a6!
- threat
- 1.Sf5+?
- 1...Kxc4
- 2.Rc3#
- 2.Qb3#
- 1...Bxf5!
- 1...Kxc4
- 1.Be2?
- threat
- 2.Sb5#
- 2.Qb2#
- 1...c4
- 2.Bxa7#
- 2.Qxa7#
- 1...a6
- 2.Qb2#
- 1...Qf3
- 2.Sb5#
- 2.Qg7#
- 1...Qh3
- 2.Sb5#
- 2.Qg7#
- 1...Qg3
- 2.Sb5#
- 1...Rh3
- 2.Sb5#
- 1...Bd3
- 2.Rxd3#
- 2.Qb2#
- 1...Qxe2!
- threat
- 1.Bd3?
- threat
- 2.Sb5#
- 2.Sf5#
- 1...c4
- 2.Bxa7#
- 2.Qxa7#
- 1...a6
- 2.Sf5#
- 1...Qh3
- 2.Sb5#
- 2.Qb2#
- 2.Qg7#
- 1...Qe4
- 2.Sb5#
- 2.Qb2#
- 1...Qb2
- 2.Sf5#
- 2.Qxb2#
- 2.Qg7#
- 1...Qg4
- 2.Sb5#
- 2.Qb2#
- 1...Qg5
- 2.Sb5#
- 2.Qb2#
- 1...Qg6
- 2.Sb5#
- 2.Qb2#
- 1...Bxd3!
- threat
- 1.Rc3?
- threat
- 2.Sb5#
- 1...Qb2
- 2.Qxd5#
- 2.Qg7#
- 1...a6!
- threat
- 1.Rf3?
- threat
- 2.Qxd5#
- 1...Qxf3
- 2.Qg7#
- 1...dxc4
- 2.Sb5#
- 1...Qg5
- 2.Qb2#
- 1...Be4!
- threat
- 1.Rg3?
- threat
- 2.Qg7#
- 1...Qxg3
- 2.Qxd5#
- 1...dxc4
- 2.Sb5#
- 1...Qe4
- 2.Qb2#
- 1...Qe2
- 2.Qxd5#
- 1...Rg4!
- threat
- 1.Re2?
- threat
- 2.Qb2#
- 1...Qxe2
- 2.Qxd5#
- 1...dxc4
- 2.Sb5#
- 1...Qf3
- 2.Qg7#
- 1...Qh3
- 2.Qxd5#
- 2.Qg7#
- 1...Qg3
- 2.Qxd5#
- 1...Rh3!
- threat
- 1.Re4+?
- 1...Qxe4
- 2.Qb2#
- 1...dxe4
- 2.Qd5#
- 1...Bxe4!
- 1...Qxe4
- 1.Qb3?
- threat
- 2.Sb5#
- 2.Qc3#
- 1...a6
- 2.Qc3#
- 1...Qf3
- 2.Sb5#
- 1...Qh3
- 2.Sb5#
- 1...Qb2
- 2.Sb5#
- 2.Qxb2#
- 1...Qc2
- 2.Sb5#
- 1...Qd2
- 2.Sb5#
- 1...Qg3
- 2.Sb5#
- 1...Rh3
- 2.Sb5#
- 1...dxc4+!
- threat
- 1.Qb4?
- threat
- 2.Sb5#
- 2.Qc3#
- 1...cxb4
- 2.Bxa7#
- 1...a6
- 2.Qc3#
- 1...Qf3
- 2.Sb5#
- 1...Qh3
- 2.Sb5#
- 1...Qb2
- 2.Sb5#
- 2.Qxb2#
- 1...Qc2
- 2.Sb5#
- 1...Qd2
- 2.Sb5#
- 1...Qg3
- 2.Sb5#
- 1...Rh3
- 2.Sb5#
- 1...dxc4+!
- threat
- 1.Sb2?
- Keys
- 1.Rg6!
- threat
- 2.Qg7#
- 1...Ke5
- 2.Qg7#
- 1...Qxg6
- 2.Qxd5#
- 2.Qb2#
- 1...dxc4
- 2.Sb5#
- 1...Qe4
- 2.Qb2#
- 1...Qe2
- 2.Qxd5#
- 1...Qg5
- 2.Qb2#
- threat
- 1.Rg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(b);N_GUARD::QAB(F)
- Q(b);N_GUARD::QAR1(F),XP(g)
- B(a);N_GUARD::R1(B)
- B(a);S_CUTQ(b)::QAB(F)
- B(a);N_GUARD::R1(B),XB(a)
- P(d);S_CUTQ(b)::QAR1(F),XP(g)
- P(g);P_PINQ(F),SBLOCK,XB(C)::S(D)
- Tries
- Try
- S(A);
- Threat
- S(D)
- Refutation
- P(i);
- Try
- S(A);
- Threat
- QAB(F)
- Vars
- P(g);P_PINQ(F),SBLOCK,XB(C)::S(D)
- Q(b);N_GUARD::QAB(F)
- Q(b);N_GUARD::QAR1(F),XP(g)
- Refutation
- R(e);
- Try
- S(A);
- Threat
- S(A)
- Refutation
- P(i);
- Try
- S(D);CHECK
- Refutation
- B(a);XS(D)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- P(i);::QAB(F)
- Q(b);::S(D)
- R(e);::S(D)
- Refutation
- Q(b);XB(C)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- P(i);::S(D)
- Refutation
- B(a);XB(C)
- Try
- R(B);
- Threat
- S(D)
- Refutation
- P(i);
- Try
- R(B);
- Threat
- QAR1(F),XP(g)
- Vars
- Q(b);N_GUARD,XR(B)::QAB(F)
- P(g);SBLOCK,XB(C)::S(D)
- Q(b);N_GUARD::QAB(F)
- Refutation
- B(a);
- Try
- R(B);
- Threat
- QAB(F)
- Vars
- Q(b);N_GUARD,XR(B)::QAR1(F),XP(g)
- P(g);P_PINQ(F),SBLOCK,XB(C)::S(D)
- Q(b);N_GUARD::QAB(F)
- Q(b);N_GUARD::QAR1(F),XP(g)
- Refutation
- R(e);
- Try
- R(E);
- Threat
- QAB(F)
- Vars
- Q(b);N_GUARD,XR(E)::QAR1(F),XP(g)
- P(g);P_PINQ(F),SBLOCK,XB(C)::S(D)
- Q(b);N_GUARD::QAB(F)
- Q(b);N_GUARD::QAR1(F),XP(g)
- Refutation
- R(e);
- Try
- R(E);CHECK
- Vars
- Q(b);XR(E)::QAB(F)
- P(g);XR(E)::QAR1(F)
- Refutation
- B(a);XR(E)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(i);::QAB1(F)
- Q(b);::S(D)
- R(e);::S(D)
- Refutation
- P(g);CHECK,XB(C)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(f);OGATEB,XQ(F)::B(H),XP(i)
- P(i);::QAB1(F)
- Q(b);::S(D)
- R(e);::S(D)
- Refutation
- P(g);CHECK,P_SPINP(g),XB(C)
- Try
- Actual
- R(E);
- Threat
- QAB(F)
- Vars
- K(c);S_FLIGHT::QAB(F)
- P(g);P_PINQ(F),SBLOCK,XB(C)::S(D)
- Q(b);N_GUARD::QAB(F)
- Q(b);N_GUARD::QAR1(F),XP(g)
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