MESON Chess Problem Database
Problem Display
PID: 265410 (2K5/8/1p6/kpp3Q1/p6R/p7/P7/5B2 w - - 0 1)
Kichigin, Viktor Vladimirovich
Zadachi i Etyudi, 2010
#2
5 + 6
SOLUTION
- SOUND
- Sets
- 1...Ka6
- 2.Rxa4#
- 1...Ka6
- Tries
- 1.Rxa4+?
- 1...bxa4
- 2.Qd2#
- 1...Kxa4!
- 1...bxa4
- 1.Qd2+?
- 1...Ka6
- 2.Rxa4#
- 1...b4!
- 1...Ka6
- 1.Qe7?
- threat
- 2.Qa7#
- 1...Ka6
- 2.Rxa4#
- 1...c4!
- threat
- 1.Qg2?
- threat
- 2.Qa8#
- 1...Ka6
- 2.Rxa4#
- 2.Qa8#
- 1...c4!
- threat
- 1.Qxc5?
- threat
- 2.Qxb5#
- 1...Ka6
- 2.Rxa4#
- 1...bxc5!
- threat
- 1.Qd5?
- threat
- 2.Qa8#
- 1...Ka6
- 2.Rxa4#
- 2.Qa8#
- 1...c4!
- threat
- 1.Qg7?
- threat
- 2.Qa7#
- 1...Ka6
- 2.Rxa4#
- 1...c4!
- threat
- 1.Rxa4+?
- Keys
- 1.Rb4!
- 1...Kxb4
- 2.Qd2#
- 1...Ka6
- 2.Rxa4#
- 1...cxb4
- 2.Qxb5#
- 1...c4
- 2.Qxb5#
- 1...Kxb4
- 1.Rb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(c);N_GUARD,P-FLIGHT,P_SPINP(d)::R(C),XP(b)
- Tries
- Try
- R(C);CHECK,XP(b)
- Vars
- P(d);P_SPINP(e),SBLOCK,XR(C)::QAB(D)
- Refutation
- K(c);P-FLIGHT,XR(C)
- Try
- Q(D);CHECK
- Vars
- K(c);N_GUARD,P-FLIGHT,P_SPINP(d)::R(C),XP(b)
- Refutation
- P(d);P_SPINP(d)
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- K(c);N_GUARD,P-FLIGHT,P_SPINP(d)::R(C),XP(b)
- Refutation
- P(e);
- Try
- Q(D);
- Threat
- QAR(D)
- Refutation
- P(e);
- Try
- Q(D);P_PINP(d),XP(e)
- Threat
- QAR1(D),XP(d)
- Vars
- K(c);N_GUARD,P-FLIGHT::R(C),XP(b)
- Refutation
- P(f);N_SPINP(d),XQ(D)
- Try
- Q(D);
- Threat
- QAR(D)
- Refutation
- P(e);P_SPINP(d)
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- K(c);N_GUARD,P-FLIGHT,P_SPINP(d)::R(C),XP(b)
- Refutation
- P(e);
- Try
- Actual
- R(C);
- Vars
- K(c);OGATEB,S_FLIGHT,XR(C)::QAB(D)
- K(c);N_GUARD,P-FLIGHT,P_SPINP(d)::R(C),XP(b)
- P(e);OGATE,P_SPINP(d),XR(C)::QAR1(D),XP(d)
- P(e);OGATE,P_SPINP(d)::QAR1(D),XP(d)
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