MESON Chess Problem Database

Problem Display
PID: 239214 (8/8/2N2p2/2RN4/4k2K/8/3R4/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 1999

8/8/2N2p2/2RN4/4k2K/8/3R4/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kg3?
      • 1...f5
        • 2.Rd4#
        • 2.Rc4#
      • 1...Kf5!
    • 1.Rd4+?
      • 1...Kf5
        • 2.Sf4#
      • 1...Kf3!
    • 1.Rc3?
      • 1...f5
        • 2.Rd4#
        • 2.Re3#
      • 1...Kf5!
    • 1.Rc4+?
      • 1...Kf3
        • 2.Rf4#
      • 1...Kf5!
  • Keys
    • 1.Re2+!
      • 1...Kd3
        • 2.Sf4#
      • 1...Kf3
        • 2.Sd4#
      • 1...Kf5
        • 2.Sce7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);CHECK
      • Vars
        • K(a);S_FLIGHT::R(C)+S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);CHECK
    • Vars
      • K(a);S_FLIGHT::S(D)
      • K(a);S_FLIGHT::S(E)
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