MESON Chess Problem Database
Problem Display
PID: 136140 (4Q3/8/p3prp1/K4k2/8/3N2R1/5N2/8 w - - 0 1)
Gruber, Bratoljub
8th HM., Chigorin MT, 1958-1959
#2
5 + 5
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Qxg6#
- 2.Qxf8#
- 1...e5
- 2.Qxe5#
- 1...g5
- 2.Rf3#
- 1...Rf7
- Tries
- 1.Ka4?
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Qxg6#
- 2.Qxf8#
- 1...e5
- 2.Qxe5#
- 1...g5
- 2.Rf3#
- 1...a5!
- 1...Rf7
- 1.Kb4?
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Qxg6#
- 2.Qxf8#
- 1...e5
- 2.Qxe5#
- 1...g5
- 2.Rf3#
- 1...a5+!
- 1...Rf7
- 1.Kxa6?
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Qxg6#
- 2.Qxf8#
- 1...g5
- 2.Rf3#
- 1...e5+!
- 1...Rf7
- 1.Rg1?
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Qxg6#
- 2.Qxf8#
- 1...e5
- 2.Qxe5#
- 1...g5!
- 1...Rf7
- 1.Rg2?
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Qxg6#
- 2.Qxf8#
- 1...e5
- 2.Qxe5#
- 1...g5!
- 1...Rf7
- 1.Rg4?
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Qxg6#
- 2.Qxf8#
- 1...e5
- 2.Qxe5#
- 1...g5!
- 1...Rf7
- 1.Qb5+?
- 1...e5
- 2.Qxe5#
- 1...axb5!
- 1...e5
- 1.Qc6?
- threat
- 2.Qf3#
- 2.Qe4#
- 1...Rf7
- 2.Qf3#
- 1...Rf8
- 2.Qf3#
- 1...g5
- 2.Qe4#
- 1...e5!
- threat
- 1.Qe7?
- 1...Rf7
- 2.Rf3#
- 2.Rg5#
- 2.Qg5#
- 2.Qxf7#
- 1...Rf8
- 2.Rf3#
- 2.Rg5#
- 2.Qg5#
- 2.Qxf8#
- 1...e5
- 2.Qxe5#
- 1...g5!
- 1...Rf7
- 1.Qa8?
- threat
- 2.Qf3#
- 2.Qe4#
- 1...Rf7
- 2.Qf3#
- 1...Rf8
- 2.Qf3#
- 2.Qxf8#
- 1...g5
- 2.Qe4#
- 1...e5!
- threat
- 1.Qb8?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 1...g5!
- threat
- 1.Qg8?
- 1...Rf7
- 2.Qxf7#
- 2.Qxg6#
- 1...Rf8
- 2.Qxg6#
- 2.Qxf8#
- 1...g5
- 2.Rf3#
- 2.Rxg5#
- 2.Qxg5#
- 1...e5!
- 1...Rf7
- 1.Qh8?
- threat
- 2.Qh3#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 2.Qxf8#
- 1...g5!
- threat
- 1.Ka4?
- Keys
- 1.Qa4!
- threat
- 2.Qe4#
- 2.Qf4#
- 2.Qg4#
- 1...Rf7
- 2.Qf4#
- 1...Rf8
- 2.Qf4#
- 1...e5
- 2.Qg4#
- 1...g5
- 2.Qe4#
- threat
- 1.Qa4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(d);OGATEB::QAR2(E),XR(d)
- P(c);OGATE::QAR1(E),XP(c)
- P(e);SBLOCK::R(C)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- R(d);OGATEB::QAR2(E),XR(d)
- P(c);OGATE::QAR1(E),XP(c)
- P(e);SBLOCK::R(C)
- Refutation
- P(b);
- Try
- K(D);S_FLIGHT
- Vars
- R(d);OGATEB::QAR2(E),XR(d)
- P(c);OGATE::QAR1(E),XP(c)
- P(e);SBLOCK::R(C)
- Refutation
- P(b);CHECK
- Try
- K(D);P-FLIGHT,XP(b)
- Vars
- R(d);OGATEB::QAR2(E),XR(d)
- P(e);SBLOCK::R(C)
- Refutation
- P(c);CHECK
- Try
- R(C);
- Vars
- R(d);OGATEB::QAR2(E),XR(d)
- P(c);OGATE::QAR1(E),XP(c)
- Refutation
- P(e);
- Try
- R(C);
- Vars
- R(d);OGATEB::QAR2(E),XR(d)
- P(c);OGATE::QAR1(E),XP(c)
- Refutation
- P(e);
- Try
- R(C);
- Vars
- R(d);OGATEB::QAR2(E),XR(d)
- P(c);OGATE::QAR1(E),XP(c)
- Refutation
- P(e);
- Try
- Q(E);CHECK
- Vars
- P(c);P_SPINP(c)::QAR1(E),XP(c)
- Refutation
- P(b);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(d);::QAR2(E)
- P(e);::QAB1(E)
- Refutation
- P(c);
- Try
- Q(E);
- Vars
- P(c);OGATE::QAR1(E),XP(c)
- Refutation
- P(e);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(d);::QAR2(E)
- P(e);::QAB1(E)
- Refutation
- P(c);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- P(c);::QAR1(E),XP(c)
- Refutation
- P(e);
- Try
- Q(E);
- Refutation
- P(c);
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- R(d);OGATE::QAR1(E)
- Refutation
- P(e);
- Try
- Actual
- Q(E);
- Threat
- DUALS(3)
- Vars
- R(d);::QAR1(E)
- P(c);::QAB1(E)
- P(e);::QAB1(E)
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