MESON Chess Problem Database

Problem Display
PID: 241757 (8/2R5/8/2Bk2K1/8/5P2/4B3/4R3 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1928

8/2R5/8/2Bk2K1/8/5P2/4B3/4R3

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Bc4#
    • 1...Ke6
      • 2.Bc4#
  • Tries
    • 1.Kg6?
      • 1...Ke6
        • 2.Bc4#
      • 1...Ke5!
    • 1.Rc6?
      • 1...Ke5
        • 2.Bc4#
      • 1...Kxc6!
    • 1.Rc8?
      • 1...Ke5
        • 2.Bc4#
      • 1...Ke6!
    • 1.f4?
      • 1...Ke6
        • 2.Bf3#
        • 2.Bc4#
      • 1...Ke4!
  • Keys
    • 1.Rd1+!
      • 1...Ke5
        • 2.Re7#
      • 1...Ke6
        • 2.Re7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(A)+B(B)
    • K(a);S_FLIGHT::R(A)+B(B),DCHECK
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::R(A)+B(B),DCHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);P-FLIGHT::R(A)+B(B)
      • Refutation
        • K(a);S_FLIGHT,XR(F)
    • Try
      • R(F);
      • Vars
        • K(a);P-FLIGHT::R(A)+B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(C);
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);CHECK
    • Vars
      • K(a);P-FLIGHT::R(F)
      • K(a);S_FLIGHT::R1(F)
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