MESON Chess Problem Database

Problem Display
PID: 237454 (8/8/5K2/2R5/4k3/8/1NR1B3/8 w - - 0 1)

Labai, Zoltan

Kudesnik, 2008

8/8/5K2/2R5/4k3/8/1NR1B3/8

#2

5 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd1?
      • threat
        • 2.R2c4#
      • 1...Kd4
        • 2.R2c4#
      • 1...Kf4!
    • 1.R2c3?
      • 1...Kf4
        • 2.R5c4#
      • 1...Kd4!
    • 1.Re5+?
      • 1...Kd4
        • 2.Rc4#
      • 1...Kf4!
  • Keys
    • 1.R5c4+!
      • 1...Ke3
        • 2.Sd1#
      • 1...Kd5
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(D);CHECK
    • Vars
      • K(a);P-FLIGHT::S(A)
      • K(a);S_FLIGHT::R(B)
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