MESON Chess Problem Database

Problem Display
PID: 231470 (B7/1R3p2/2k2P2/1N6/1K6/8/8/8 w - - 0 1)

Szasz, Lajos

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

B7/1R3p2/2k2P2/1N6/1K6/8/8/8

#2

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Re7#
  • Tries
    • 1.Ka5?
      • threat
        • 2.Rc7#
      • 1...Kc5
        • 2.Rc7#
      • 1...Kd5!
    • 1.Rd7+?
      • 1...Kb6
        • 2.Rd6#
      • 1...Kxd7!
  • Keys
    • 1.Rc7+!
      • 1...Kb6
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::B(E)+R(D)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • B(E)+R(D),DCHECK
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
  • Actual
    • R(D);CHECK
    • Vars
      • K(a);P-FLIGHT::R1(D)
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Developed and maintained by Brian Stephenson.
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