MESON Chess Problem Database

Problem Display
PID: 227858 (8/8/8/8/3p3B/6Q1/4k3/2K5 w - - 0 1)

Schiffert, Gyorgy

Magyar Sakkvilag, 1926

8/8/8/8/3p3B/6Q1/4k3/2K5

#2

3 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf1
      • 2.Qf2#
    • 1...d3
      • 2.Qf2#
  • Tries
    • 1.Qf4?
      • 1...d3
        • 2.Qf2#
      • 1...Kd3!
  • Keys
    • 1.Kc2!
      • threat
        • 2.Qf2#
        • 2.Qd3#
      • 1...d3+
        • 2.Qxd3#
      • 1...Kf1
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(B)
    • P(b);SBLOCK::QAR1(B)
  • Tries
    • Try
      • Q(B);
      • Vars
        • P(b);SBLOCK::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(A);P-FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • P(b);CHECK::QAB1(B),XP(b)
      • K(a);S_FLIGHT::QAR1(B)
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