MESON Chess Problem Database

Problem Display
PID: 219172 (8/8/7p/8/6Q1/8/6Pr/5K1k w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1976

8/8/7p/8/6Q1/8/6Pr/5K1k

#2

3 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg2
      • 2.Qxg2#
    • 1...Rh3
      • 2.Qxh3#
    • 1...Rh4
      • 2.Qxh4#
    • 1...Rh5
      • 2.Qxh5#
  • Tries
    • 1.Qh5?
      • 1...Rh3
        • 2.Qxh3#
      • 1...Rh4
        • 2.Qxh4#
      • 1...Rxh5!
  • Keys
    • 1.Kf2!
      • threat
        • 2.Qd1#
      • 1...Rxg2+
        • 2.Qxg2#
      • 1...Rh3
        • 2.Qxh3#
      • 1...Rh4
        • 2.Qxh4#
      • 1...Rh5
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE,XP(B)::QAB1(C),XR(b)
    • R(b);OGATEB::QAR2(C),XR(b)
    • R(b);OGATEB::QAR(C),XR(b)
  • Tries
    • Try
      • Q(C);P_PINR(b)
      • Vars
        • R(b);OGATEB::QAR2(C),XR(b)
        • R(b);OGATEB::QAR(C),XR(b)
      • Refutation
        • R(b);N_SPINR(b),XQ(C)
  • Actual
    • K(A);P-FLIGHT,P_SPINP(B)
    • Threat
      • QAR(C)
    • Vars
      • R(b);CHECK,OGATE,XP(B)::QAB1(C),XR(b)
      • R(b);N_PINP(B),OGATEB::QAR2(C),XR(b)
      • R(b);N_PINP(B),OGATEB::QAR(C),XR(b)
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