MESON Chess Problem Database
Problem Display
PID: 105456 (K1R5/5Qrk/6p1/6P1/8/8/8/8 w - - 0 1)
Lokker, Miklosh S
Minimat, 1969
#2
4 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Tries
- 1.Rc7?
- threat
- 2.Qxg7#
- 1...Kh8
- 2.Qxg7#
- 1...Rxf7!
- threat
- 1.Qb3?
- threat
- 2.Qh3#
- 1...Rb7
- 2.Qg8#
- 2.Qxb7#
- 1...Rc7
- 2.Qg8#
- 1...Rd7
- 2.Qg8#
- 1...Re7
- 2.Qg8#
- 1...Rf7
- 2.Qxf7#
- 1...Rg8
- 2.Qxg8#
- 1...Ra7+!
- threat
- 1.Qc4?
- threat
- 2.Qh4#
- 1...Rb7
- 2.Qg8#
- 1...Rc7
- 2.Qg8#
- 2.Qxc7#
- 1...Rd7
- 2.Qg8#
- 1...Re7
- 2.Qg8#
- 1...Rf7
- 2.Qxf7#
- 1...Rg8
- 2.Qxg8#
- 1...Ra7+!
- threat
- 1.Qd5?
- threat
- 2.Qh1#
- 1...Rb7
- 2.Qxb7#
- 2.Qg8#
- 1...Rc7
- 2.Qg8#
- 1...Rd7
- 2.Qg8#
- 2.Qxd7#
- 1...Re7
- 2.Qg8#
- 1...Rf7
- 2.Qxf7#
- 1...Rg8
- 2.Qxg8#
- 1...Ra7+!
- threat
- 1.Qe6?
- threat
- 2.Qh3#
- 1...Rb7
- 2.Qg8#
- 1...Rc7
- 2.Qg8#
- 1...Rd7
- 2.Qxd7#
- 2.Qg8#
- 1...Re7
- 2.Qg8#
- 2.Qxe7#
- 1...Rf7
- 2.Qxf7#
- 1...Rg8
- 2.Qxg8#
- 1...Ra7+!
- threat
- 1.Qe8?
- threat
- 2.Qh8#
- 1...Rg8
- 2.Qxg8#
- 1...Ra7+!
- threat
- 1.Qa7?
- 1...Rb7
- 2.Qxb7#
- 1...Rc7
- 2.Qxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Re7
- 2.Qxe7#
- 1...Rf7
- 2.Qxf7#
- 1...Rxa7+!
- 1...Rb7
- 1.Qb7?
- threat
- 2.Qh1#
- 1...Rc7
- 2.Qxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Re7
- 2.Qxe7#
- 1...Rf7
- 2.Qxf7#
- 1...Rxb7!
- threat
- 1.Qc7?
- threat
- 2.Qh2#
- 1...Rd7
- 2.Qxd7#
- 1...Re7
- 2.Qxe7#
- 1...Rf7
- 2.Qxf7#
- 1...Rxc7!
- threat
- 1.Qd7?
- threat
- 2.Qh3#
- 1...Re7
- 2.Qxe7#
- 1...Rf7
- 2.Qxf7#
- 1...Rxd7!
- threat
- 1.Qe7?
- 1...Rf7
- 2.Qxf7#
- 1...Rxe7!
- 1...Rf7
- 1.Qf8?
- threat
- 2.Qh8#
- 1...Rg8
- 2.Qh6#
- 2.Qxg8#
- 1...Ra7+!
- threat
- 1.Rc7?
- Keys
- 1.Qa2!
- threat
- 2.Qh2#
- 1...Ra7+
- 2.Qxa7#
- 1...Rb7
- 2.Qg8#
- 1...Rc7
- 2.Qg8#
- 1...Rd7
- 2.Qg8#
- 1...Re7
- 2.Qg8#
- 1...Rf7
- 2.Qxf7#
- 1...Rg8
- 2.Qxg8#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(D);
- Threat
- QAR1(B),XR(b)
- Vars
- K(c);N_SPINR(b),P-FLIGHT::QAB1(B),XR(b)
- Refutation
- R(b);XQ(B)
- Try
- Q(B);N_PINR(b)
- Threat
- QAR(B)
- Vars
- R(b);N_GUARD::QAB1(B)
- R(b);OGATEB::QAR2(B),XR(b)
- R(b);N_GUARD,P_PINR(D)::QAB1(B),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(B);N_PINR(b)
- Threat
- QAR(B)
- Vars
- R(b);N_GUARD::QAB1(B)
- R(b);OGATEB::QAR2(B),XR(b)
- R(b);N_GUARD,P_PINR(D)::QAB1(B),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(B);N_PINR(b)
- Threat
- QAR(B)
- Vars
- R(b);N_GUARD::QAB1(B)
- R(b);OGATEB::QAR2(B),XR(b)
- R(b);N_GUARD,P_PINR(D)::QAB1(B),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(B);N_PINR(b)
- Threat
- QAR(B)
- Vars
- R(b);N_GUARD::QAB1(B)
- R(b);OGATEB::QAR2(B),XR(b)
- R(b);N_GUARD,P_PINR(D)::QAB1(B),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(B);N_PINR(b)
- Threat
- QAR1(B)
- Vars
- R(b);N_GUARD::QAB1(B),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(B);
- Vars
- R(b);OGATEB::QAR(B),XR(b)
- R(b);OGATEB::QAR2(B),XR(b)
- Refutation
- R(b);CHECK,N_SPINR(b),XQ(B)
- Try
- Q(B);
- Threat
- QAR(B)
- Vars
- R(b);OGATEB::QAR(B),XR(b)
- R(b);OGATEB::QAR2(B),XR(b)
- Refutation
- R(b);N_SPINR(b),XQ(B)
- Try
- Q(B);
- Threat
- QAR(B)
- Vars
- R(b);OGATEB::QAR(B),XR(b)
- R(b);OGATEB::QAR2(B),XR(b)
- Refutation
- R(b);N_SPINR(b),XQ(B)
- Try
- Q(B);
- Threat
- QAR(B)
- Vars
- R(b);OGATEB::QAR(B),XR(b)
- R(b);OGATEB::QAR2(B),XR(b)
- Refutation
- R(b);N_SPINR(b),XQ(B)
- Try
- Q(B);
- Vars
- R(b);OGATEB::QAR2(B),XR(b)
- Refutation
- R(b);N_SPINR(b),XQ(B)
- Try
- Q(B);N_PINR(b)
- Threat
- QAR1(B)
- Refutation
- R(b);CHECK
- Try
- Actual
- Q(B);N_PINR(b)
- Threat
- QAR(B)
- Vars
- R(b);CHECK,OGATEB::QAB1(B),XR(b)
- R(b);N_GUARD::QAB1(B)
- R(b);OGATEB::QAR2(B),XR(b)
- R(b);N_GUARD,P_PINR(D)::QAB1(B),XR(b)
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