MESON Chess Problem Database

Problem Display
PID: 10834 (3B4/8/1qB5/2p5/1k6/3Q4/8/2K5 w - - 0 1)

Vishnevsky, Viacheslav Konstantinovich

64 Shakhmatnoe obozrenie, 1969

3B4/8/1qB5/2p5/1k6/3Q4/8/2K5

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qb5#
      • 2.Qa3#
  • Tries
    • 1.Kc2?
      • threat
        • 2.Qc3#
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa3#
      • 1...Qxc6
        • 2.Qb3#
      • 1...Qb5
        • 2.Qb3#
      • 1...c4!
    • 1.Qc4+?
      • 1...Ka3
        • 2.Qa4#
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa4#
      • 1...Kxc4!
    • 1.Qb5+?
      • 1...Ka3
        • 2.Qa4#
      • 1...Kc3
        • 2.Bf6#
      • 1...Qxb5!
    • 1.Qb3+?
      • 1...Ka5
        • 2.Qa4#
        • 2.Qa3#
        • 2.Qb5#
        • 2.Qxb6#
      • 1...Kxb3!
  • Keys
    • 1.Kb2!
      • threat
        • 2.Qc3#
      • 1...Ka5+
        • 2.Qb5#
      • 1...Qxc6
        • 2.Qb3#
      • 1...c4
        • 2.Qa3#
      • 1...Qb5
        • 2.Qxb5#
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • QAB1(B)
      • Vars
        • Q(c);XB(C)::QAR1(B)
        • Q(c);::QAR1(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • Q(c);XQ(B)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • QAB1(B)
    • Vars
      • K(a);CHECK,P_SPINQ(c),S_FLIGHT::QAR1(B)
      • Q(c);XB(C)::QAR1(B)
      • P(b);SBLOCK::QAB1(B)
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