MESON Chess Problem Database

Problem Display
PID: 269224 (3Q4/8/3pp3/4k3/8/2NB4/5K2/8 w - - 0 1)

Petrasinovic, Petrasin

Comm., Sem Shakhmatnikh not, 2020

3Q4/8/3pp3/4k3/8/2NB4/5K2/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qg5#
      • 1...Kd5
        • 2.Qxd6#
      • 1...Kf4!
  • Keys
    • 1.Se4!
      • 1...Kd4
        • 2.Qxd6#
      • 1...Kf4
        • 2.Qg5#
      • 1...Kd5
        • 2.Qxd6#
      • 1...Kf5
        • 2.Qg5#
      • 1...d5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR2(D)
      • Vars
        • K(a);N_GUARD,P-FLIGHT,P_SPINP(b)::QAR1(D),XP(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);N_GUARD,P_SPINP(b),S_FLIGHT::QAR2(D),XP(b)
      • K(a);N_GUARD,S_FLIGHT::QAB1(D)
      • K(a);N_GUARD,P-FLIGHT,P_SPINP(b)::QAR1(D),XP(b)
      • K(a);N_GUARD,P-FLIGHT::QAR1(D)
      • P(b);SBLOCK::QAB1(D)
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