MESON Chess Problem Database

Problem Display
PID: 77652 (4K3/8/4pN2/6k1/3N4/4R3/8/5R2 w - - 0 1)

Ylijoki, Marko

Suomen Tehtavaniekat, 1999

4K3/8/4pN2/6k1/3N4/4R3/8/5R2

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Rg3+?
      • 1...Kh6
        • 2.Rh1#
      • 1...Kh4!
  • Keys
    • 1.Rg1+!
      • 1...Kf4
        • 2.Re4#
      • 1...Kh4
        • 2.Rg4#
      • 1...Kxf6
        • 2.Rxe6#
      • 1...Kh6
        • 2.Rh3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);S_FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);CHECK
    • Vars
      • K(a);S_FLIGHT::R1(B)
      • K(a);S_FLIGHT::R1(A)
      • K(a);S_FLIGHT,XS(D)::R1(B),XP(b)
      • K(a);S_FLIGHT::R(B)
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