MESON Chess Problem Database

Problem Display
PID: 85329 (8/K7/8/kB6/2P1Q3/1rP5/8/8 w - - 0 1)

Zheltonozhko, Vladimir Ivanovich

Smena, 1995

8/K7/8/kB6/2P1Q3/1rP5/8/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qd3?
      • threat
        • 2.Qd8#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rxb5!
    • 1.Qd5?
      • threat
        • 2.Qd8#
      • 1...Rxb5
        • 2.Qxb5#
      • 1...Rxc3!
    • 1.Qc6?
      • threat
        • 2.Qa6#
        • 2.Qb6#
        • 2.Qc7#
      • 1...Rxb5
        • 2.Qxb5#
        • 2.Qa6#
      • 1...Rxc3!
    • 1.Qg6?
      • threat
        • 2.Qa6#
        • 2.Qb6#
      • 1...Rxb5
        • 2.Qa6#
      • 1...Rxc3!
    • 1.Qb7?
      • threat
        • 2.Qa6#
        • 2.Qb6#
        • 2.Qc7#
      • 1...Rxb5
        • 2.Qa6#
        • 2.Qxb5#
      • 1...Rxc3!
    • 1.Qe3?
      • threat
        • 2.Qb6#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rxb5!
    • 1.Qd4?
      • threat
        • 2.Qb6#
        • 2.Qd8#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rxb5!
    • 1.Qe6?
      • threat
        • 2.Qa6#
        • 2.Qb6#
      • 1...Rxb5
        • 2.Qa6#
      • 1...Rxc3!
    • 1.Qe7?
      • threat
        • 2.Qd8#
        • 2.Qc7#
      • 1...Rxb5
        • 2.Qa3#
      • 1...Rxc3!
    • 1.Qe8?
      • threat
        • 2.Qd8#
      • 1...Rxb5
        • 2.Qxb5#
      • 1...Rxc3!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qc7#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rxb5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB(C)
      • Vars
        • R(a);OGATE,XP(A)::QAB(C),XR(a)
      • Refutation
        • R(a);XB(D)
    • Try
      • Q(C);
      • Threat
        • QAB(C)
      • Vars
        • R(a);OGATE,P_SPINR(a),XB(D)::QAR1(C),XR(a)
      • Refutation
        • R(a);XP(A)
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Refutation
        • R(a);XP(A)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XB(D)::QAR1(C)
      • Refutation
        • R(a);XP(A)
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Refutation
        • R(a);XP(A)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • R(a);OGATE,XP(A)::QAB(C),XR(a)
      • Refutation
        • R(a);XB(D)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);OGATE,XP(A)::QAB(C),XR(a)
      • Refutation
        • R(a);XB(D)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XB(D)::QAR1(C)
      • Refutation
        • R(a);XP(A)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);N_GUARD,XB(D)::QAR2(C)
      • Refutation
        • R(a);XP(A)
    • Try
      • Q(C);
      • Threat
        • QAB(C)
      • Vars
        • R(a);OGATE,XB(D)::QAR1(C),XR(a)
      • Refutation
        • R(a);XP(A)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • R(a);OGATE,XP(A)::QAB(C),XR(a)
      • R(a);OGATE,P_SPINR(a),XB(D)::QAR1(C),XR(a)
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