MESON Chess Problem Database

Problem Display
PID: 255335 (8/8/8/8/3k4/1KNNp3/2Q5/8 w - - 0 1)

Gladtsinova, Vera

Kudesnik, 2021

8/8/8/8/3k4/1KNNp3/2Q5/8

#2

4 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sb5+?
      • 1...Kd5
        • 2.Qc4#
      • 1...Ke4!
    • 1.Qc1?
      • 1...Kxd3
        • 2.Qd1#
      • 1...e2!
    • 1.Qh2?
      • threat
        • 2.Qd6#
      • 1...Kxd3
        • 2.Qd6#
      • 1...e2!
  • Keys
    • 1.Qg2!
      • threat
        • 2.Qe4#
        • 2.Qd5#
      • 1...Kxd3
        • 2.Qd5#
      • 1...e2
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(D)::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);P-FLIGHT,XS(D)::QAR(A)
      • Refutation
        • P(a);
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT,XS(D)::QAR2(A)
      • P(a);::QAR1(A)
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