MESON Chess Problem Database

Problem Display
PID: 231126 (8/2p3R1/2R1N2k/8/7p/7K/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

8/2p3R1/2R1N2k/8/7p/7K/8/8

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kh5
      • 2.Sf4#
  • Tries
    • 1.Kg2?
      • 1...Kh5
        • 2.Sf4#
      • 1...h3+!
    • 1.Kh2?
      • 1...Kh5
        • 2.Sf4#
      • 1...h3!
    • 1.Rg1?
      • 1...Kh5
        • 2.Sf4#
        • 2.Sg7#
      • 1...Kh7!
    • 1.Rg2?
      • 1...Kh5
        • 2.Sf4#
        • 2.Sg7#
      • 1...Kh7!
    • 1.Rg4?
      • 1...Kh5
        • 2.Sf4#
        • 2.Sg7#
      • 1...Kh7!
    • 1.Rg8?
      • 1...Kh5
        • 2.Sf4#
      • 1...Kh7!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rxh4#
      • 1...Kh5
        • 2.Rxh4#

FEATURES

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