MESON Chess Problem Database
Problem Display
PID: 109010 (3rN3/RP4p1/8/2rkp3/Q7/KN1P3B/8/7b w - - 0 1)
Alberto, Hassan
Vasquez, Moreno
Pat a Mat, 2003
#2
8 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Qxc4#
- 1...Ra5
- 2.Rxa5#
- 1...Rb5
- 2.Qxb5#
- 2.Qc4#
- 1...Rd7
- 2.Qxd7#
- 1...Ra8
- 2.Qd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Rxe8
- 2.Qd7#
- 1...Be4
- 2.Qxe4#
- 2.dxe4#
- 1...Rc4
- Tries
- 1.Ra5?
- threat
- 2.Rxc5#
- 1...Rxe8
- 2.Qd7#
- 1...Rb5
- 2.Qxb5#
- 2.Qc4#
- 1...Rc8
- 2.Qd7#
- 1...Rxa5!
- threat
- 1.Qb5?
- threat
- 2.Qxc5#
- 1...Rc8
- 2.Qd7#
- 1...Rxb5!
- threat
- 1.Qc4+?
- 1...Kc6
- 2.Qxc5#
- 1...Rxc4!
- 1...Kc6
- 1.Qd4+?
- 1...Kc6
- 2.Qxc5#
- 1...exd4!
- 1...Kc6
- 1.Ra5?
- Keys
- 1.Ra6!
- threat
- 2.Be6#
- 1...Rxe8
- 2.Qd7#
- 1...e4
- 2.Qd4#
- 1...Rc6
- 2.Qxc6#
- 1...Rd6
- 2.Rxd6#
- threat
- 1.Ra6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);OGATEB,P_PINQ(E)::R(F),XR(b)
- R(f);N_GUARD::QAR2(E),XR(f)
- R(f);N_GUARD::QAR2(E)
- R(f);N_GUARD,XS(H)::QAR2(E)
- Tries
- Try
- R(F);P_PINR(b)
- Threat
- R1(F),XR(b)
- Vars
- R(f);N_GUARD,XS(H)::QAR2(E)
- R(f);N_GUARD::QAR2(E)
- Refutation
- R(b);N_SPINR(b),P_PINQ(E),XR(F)
- Try
- Q(E);P_PINR(b)
- Threat
- QAR1(E),XR(b)
- Vars
- R(f);N_GUARD::QAR2(E)
- Refutation
- R(b);N_SPINR(b),XQ(E)
- Try
- Q(E);CHECK
- Vars
- K(c);P_SPINR(b),S_FLIGHT::QAR1(E),XR(b)
- Refutation
- R(b);XQ(E)
- Try
- Q(E);CHECK
- Vars
- K(c);S_FLIGHT::QAR1(E),XR(b)
- Refutation
- P(d);XQ(E)
- Try
- Actual
- R(F);
- Threat
- B(D)
- Vars
- R(f);N_GUARD,XS(H)::QAR2(E)
- P(d);N_GUARD::QAR1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(f);N_GUARD::R1(F),XR(f)
Developed and maintained by Brian Stephenson.
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