MESON Chess Problem Database

Problem Display
PID: 242001 (8/8/N7/8/2p5/2p5/k1P5/1RK5 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1933

8/8/N7/8/2p5/2p5/k1P5/1RK5

#2

4 + 3

5454 Near Snap 2021
15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Ra1#
  • Tries
    • 1.Rb3?
      • 1...Ka1
        • 2.Ra3#
      • 1...cxb3!
    • 1.Rb4?
      • threat
        • 2.Ra4#
      • 1...Ka1
        • 2.Ra4#
      • 1...Ka3!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Ra5#
      • 1...Ka1
        • 2.Ra5#
      • 1...Ka3
        • 2.Ra5#

Anticipated by 205537(1925)

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(A)
  • Tries
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • P(c);XR(A)
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(A);
    • Threat
      • R(A)
    • Vars
      • K(a);P-FLIGHT::R(A)
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