MESON Chess Problem Database

Problem Display
PID: 231518 (8/8/8/3K4/8/4kp1R/7Q/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

8/8/8/3K4/8/4kp1R/7Q/8

#2

3 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Rxf3#
  • Tries
    • 1.Rg3?
      • 1...Kd3
        • 2.Rxf3#
      • 1...Kf4!
    • 1.Qa2?
      • 1...Kd3
        • 2.Rxf3#
      • 1...Kf4!
    • 1.Qb2?
      • 1...Kd3
        • 2.Rxf3#
      • 1...Kf4!
  • Keys
    • 1.Qg2!
      • threat
        • 2.Rxf3#
      • 1...Kd3
        • 2.Rxf3#
      • 1...Kf4
        • 2.Rxf3#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(B),XP(b)
  • Tries
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::R(B),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::R(B),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • R1(B),XP(b)
    • Vars
      • K(a);P-FLIGHT::R(B),XP(b)
      • K(a);N_SPINP(b),S_FLIGHT::R1(B),XP(b)
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