MESON Chess Problem Database

Problem Display
PID: 219221 (8/8/Q7/8/2pp4/2P5/p7/k1K5 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1977

8/8/Q7/8/2pp4/2P5/p7/k1K5

#2

3 + 4

15148 Sadier Collection 2020
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Qxc4?
      • 1...dxc3
        • 2.Qxc3#
      • 1...d3!
    • 1.Qa5?
      • 1...dxc3
        • 2.Qxc3#
      • 1...d3!
    • 1.Qf6?
      • 1...dxc3
        • 2.Qxc3#
      • 1...d3!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qb2#
      • 1...dxc3
        • 2.Qxc3#

Anticipated by 242085(1936)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);N_PINP(b),XP(c)
      • Vars
        • P(d);OGATE,XP(B)::QAB(C),XP(d)
      • Refutation
        • P(d);
    • Try
      • Q(C);
      • Vars
        • P(d);OGATE,XP(B)::QAB(C),XP(d)
      • Refutation
        • P(d);
    • Try
      • Q(C);N_PINP(b)
      • Vars
        • P(d);OGATE,P_SPINP(d),XP(B)::QAB(C),XP(d)
      • Refutation
        • P(d);
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • P(d);OGATE,XP(B)::QAB(C),XP(d)
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