MESON Chess Problem Database

Problem Display
PID: 216440 (8/p7/8/k7/p7/8/1RPK4/2Q5 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1975

8/p7/8/k7/p7/8/1RPK4/2Q5

#2

4 + 3

15148 Sadier Collection 1975

SOLUTION

  • SOUND
  • Tries
    • 1.Qa1?
      • 1...Ka6
        • 2.Qxa4#
      • 1...a3
        • 2.Qxa3#
      • 1...a6!
    • 1.Qg1?
      • threat
        • 2.Qxa7#
      • 1...a6
        • 2.Qc5#
        • 2.Qb6#
        • 2.Qg5#
      • 1...Ka6!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qb5#
      • 1...a6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);P_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XP(a)
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(c)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • P(c);SBLOCK::QAR(A)
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