MESON Chess Problem Database

Problem Display
PID: 255334 (8/8/Q2K4/3p4/2Nkp3/8/8/2N5 w - - 0 1)

Gladtsinova, Vera

Kudesnik, 2021

8/8/Q2K4/3p4/2Nkp3/8/8/2N5

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qa5?
      • 1...Kxc4
        • 2.Qc5#
      • 1...dxc4
        • 2.Qd2#
      • 1...e3!
    • 1.Qb6+?
      • 1...Kxc4
        • 2.Qc5#
      • 1...Kc3!
    • 1.Qa7+?
      • 1...Kxc4
        • 2.Qc5#
      • 1...Kc3!
  • Keys
    • 1.Qa3!
      • 1...Kxc4
        • 2.Qc5#
      • 1...dxc4
        • 2.Se2#
      • 1...e3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XS(B)::QAR1(C)
        • P(c);SBLOCK,XS(B)::QAR2(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XS(B)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XS(B)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);N_GUARD,P-FLIGHT,XS(B)::QAR1(C)
      • P(c);SBLOCK,XS(B)::S(A)
      • P(b);N_GUARD::QAR1(C)
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