MESON Chess Problem Database

Problem Display
PID: 216437 (8/pKp5/8/k7/p7/8/8/1Q6 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1975

8/pKp5/8/k7/p7/8/8/1Q6

#2

2 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kxa7?
      • 1...c5
        • 2.Qb6#
      • 1...c6
        • 2.Qb6#
      • 1...a3!
    • 1.Qf5+?
      • 1...c5
        • 2.Qxc5#
      • 1...Kb4!
  • Keys
    • 1.Kc6!
      • threat
        • 2.Qb5#
      • 1...Ka6
        • 2.Qb5#
      • 1...a6
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT,XP(c)
      • Vars
        • P(d);N_GUARD::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);CHECK
      • Vars
        • P(d);P_SPINP(d)::QAR2(A),XP(d)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • QAR1(A)
    • Vars
      • K(b);P-FLIGHT::QAB1(A)
      • P(c);SBLOCK::QAB(A)
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