MESON Chess Problem Database
Problem Display
PID: 80070 (8/Kp2p2r/pR4Q1/1pk1p3/5N2/7q/B1N3p1/B4n2 w - - 0 1)
Rukhlis, Efim Naumovich
4th Prize, Mat Plus, 1995
#2
7 + 10
| 5929 | Mat Plus Special Issue | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Qg4
- 2.Sd3#
- 1...Qe6
- 2.Sd3#
- 2.Sxe6#
- 1...Qc8
- 2.Sd3#
- 1...Qh1
- 2.Sd3#
- 2.Se6#
- 1...Qh2
- 2.Sd3#
- 2.Se6#
- 1...Qa3
- 2.Se6#
- 1...Qc3
- 2.Se6#
- 1...Qd3
- 2.Sxd3#
- 2.Se6#
- 1...Qe3
- 2.Se6#
- 1...Qf3
- 2.Se6#
- 1...Qg3
- 2.Se6#
- 1...Qh4
- 2.Sd3#
- 2.Se6#
- 1...Qh5
- 2.Sd3#
- 2.Se6#
- 1...Qh6
- 2.Sd3#
- 2.Se6#
- 1...Se3
- 2.Sd3#
- 1...Sg3
- 2.Sd3#
- 1...exf4
- 2.Bd4#
- 1...e4
- 2.Bd4#
- 1...Qg4
- Tries
- 1.Bc3?
- threat
- 2.Bb4#
- 1...Qxc3
- 2.Se6#
- 1...b4
- 2.Bxb4#
- 1...a5!
- threat
- 1.Rxb5+?
- 1...axb5
- 2.Qb6#
- 1...Kxb5!
- 1...axb5
- 1.Qd3?
- threat
- 2.Qd5#
- 1...Qxd3
- 2.Sxd3#
- 2.Se6#
- 1...Qe6
- 2.Sxe6#
- 1...Qd7
- 2.Qc3#
- 1...Qf3
- 2.Se6#
- 1...e6
- 2.Qd6#
- 1...Se3!
- threat
- 1.Qe4?
- threat
- 2.Qd5#
- 2.Qb4#
- 2.Qxe5#
- 1...exf4
- 2.Bd4#
- 2.Qd5#
- 2.Qb4#
- 2.Qd4#
- 2.Qe5#
- 1...Qf5
- 2.Sd3#
- 2.Qd5#
- 2.Qb4#
- 1...Qe6
- 2.Sd3#
- 2.Sxe6#
- 2.Qb4#
- 1...Qd7
- 2.Qb4#
- 1...Qa3
- 2.Se6#
- 2.Qd5#
- 2.Qxe5#
- 1...Qc3
- 2.Se6#
- 2.Qd5#
- 1...Qd3
- 2.Sxd3#
- 2.Se6#
- 2.Qb4#
- 1...Qe3
- 2.Se6#
- 2.Qd5#
- 2.Qb4#
- 1...Qf3
- 2.Se6#
- 2.Qb4#
- 1...Qh5
- 2.Sd3#
- 2.Se6#
- 2.Qd5#
- 2.Qb4#
- 1...Rh5
- 2.Qd5#
- 2.Qb4#
- 1...Se3
- 2.Sd3#
- 2.Qb4#
- 1...b4
- 2.Qd5#
- 2.Qxb4#
- 2.Qc4#
- 2.Qxe5#
- 1...a5
- 2.Qd5#
- 2.Qxe5#
- 1...e6
- 2.Qb4#
- 2.Qxe5#
- 1...Qb3!
- threat
- 1.Qf5?
- threat
- 2.Se6#
- 2.Bd4#
- 2.Qxe5#
- 1...Qb3
- 2.Qc8#
- 1...g1Q
- 2.Se6#
- 2.Qxe5#
- 1...g1B
- 2.Se6#
- 2.Qxe5#
- 1...Qc3
- 2.Se6#
- 2.Qc8#
- 1...Qd3
- 2.Sxd3#
- 2.Se6#
- 2.Qc8#
- 1...Qe3
- 2.Se6#
- 2.Qc8#
- 1...Qf3
- 2.Se6#
- 2.Bd4#
- 1...Qh5
- 2.Sd3#
- 2.Se6#
- 2.Bd4#
- 2.Qc8#
- 1...Qh6
- 2.Sd3#
- 2.Bd4#
- 2.Qxe5#
- 1...Rh5
- 2.Se6#
- 2.Bd4#
- 1...Rh6
- 2.Bd4#
- 2.Qxe5#
- 1...Se3
- 2.Sd3#
- 2.Se6#
- 2.Bd4#
- 1...e6
- 2.Sxe6#
- 2.Bd4#
- 2.Qxe5#
- 1...Qxf5!
- threat
- 1.Qg4?
- threat
- 2.Se6#
- 1...Qxg4
- 2.Sd3#
- 1...exf4
- 2.Bd4#
- 1...Qb3
- 2.Qc8#
- 1...Qh6
- 2.Sd3#
- 1...e6
- 2.Sxe6#
- 1...Rh6!
- threat
- 1.Qe6?
- threat
- 2.Qd5#
- 2.Qxe5#
- 1...Qxe6
- 2.Sd3#
- 2.Sxe6#
- 1...exf4
- 2.Bd4#
- 2.Qd5#
- 2.Qe5#
- 1...Qf5
- 2.Qd5#
- 1...Qb3
- 2.Qc8#
- 1...Qc3
- 2.Qd5#
- 2.Qc8#
- 1...Qd3
- 2.Sxd3#
- 2.Qc8#
- 1...Qe3
- 2.Qd5#
- 2.Qc8#
- 1...Qh5
- 2.Sd3#
- 2.Qd5#
- 2.Qc8#
- 1...Rh5
- 2.Qd5#
- 2.Qxe7#
- 1...Se3
- 2.Sd3#
- 1...e4
- 2.Bd4#
- 2.Qd5#
- 2.Qe5#
- 1...Qf3!
- threat
- 1.Bc3?
- Keys
- 1.Qg3!
- threat
- 2.Sd3#
- 1...Qxg3
- 2.Se6#
- 1...exf4
- 2.Bd4#
- 1...Qf5
- 2.Qc3#
- 1...Qd7
- 2.Qc3#
- 1...e4
- 2.Bd4#
- threat
- 1.Qg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- Q(c);N_GUARD::S(D)
- S(a);S_CUTQ(c)::S(D)
- P(f);N_GUARD,XS(D)::B(A)
- P(f);N_GUARD::B(A)
- Tries
- Try
- B(A);
- Threat
- B(A)
- Vars
- Q(c);N_GUARD,XB(A)::S(D)
- P(d);::B(A),XP(d)
- Refutation
- P(g);
- Try
- R(E);CHECK,XP(d)
- Vars
- P(g);XR(E)::QAB1(F)
- Refutation
- K(e);P-FLIGHT,XR(E)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- Q(c);N_GUARD::S(D),XQ(c)
- Q(c);N_GUARD::QAR2(F)
- Q(c);N_GUARD::S(D)
- P(i);N_GUARD::QAB1(F)
- Refutation
- S(a);
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- Q(c);::QAB1(F)
- Refutation
- Q(c);
- Try
- Q(F);P_PINP(f)
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD::QAR(F)
- Refutation
- Q(c);N_SPINP(f),XQ(F)
- Try
- Q(F);
- Threat
- S(D)
- Vars
- Q(c);N_GUARD,XQ(F)::S(D)
- P(f);N_GUARD,XS(D)::B(A)
- Q(c);N_GUARD::QAR(F)
- Q(c);N_GUARD::S(D)
- P(i);::S(D),XP(i)
- Refutation
- R(j);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(c);::QAR1(F)
- Q(c);N_GUARD::QAR(F)
- S(a);S_CUTQ(c)::S(D)
- Refutation
- Q(c);
- Try
- Actual
- Q(F);
- Threat
- S(D)
- Vars
- Q(c);N_GUARD,XQ(F)::S(D)
- P(f);N_GUARD,XS(D)::B(A)
- Q(c);N_GUARD::QAR2(F)
- P(f);N_GUARD::B(A)
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