MESON Chess Problem Database

Problem Display
PID: 240459 (8/2Qp4/2Nrk1K1/3p4/8/8/8/8 w - - 0 1)

Parkhomenko, Nikolai A

Problemist Pribuzhya, 1993

8/2Qp4/2Nrk1K1/3p4/8/8/8/8

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qb8?
      • threat
        • 2.Qe8#
        • 2.Qg8#
      • 1...dxc6
        • 2.Qe8#
      • 1...d4
        • 2.Qg8#
      • 1...Rxc6!
    • 1.Qc8?
      • threat
        • 2.Qe8#
        • 2.Qg8#
      • 1...d4
        • 2.Qg8#
      • 1...Rxc6!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qf6#
        • 2.Qe7#
        • 2.Qe8#
        • 2.Qg8#
      • 1...Rxc6
        • 2.Qf6#
      • 1...dxc6
        • 2.Qe8#
      • 1...d4
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);XS(A)::QAR2(C)
        • P(a);::QAB(C)
      • Refutation
        • R(b);XS(A)
    • Try
      • Q(C);P_PINP(d)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB(C)
      • Refutation
        • R(b);XS(A)
  • Actual
    • Q(C);
    • Threat
      • DUALS(4)
    • Vars
      • R(b);XS(A)::QAR1(C)
      • P(d);XS(A)::QAR2(C)
      • P(a);::QAB(C)
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