MESON Chess Problem Database

Problem Display
PID: 105812 (8/8/2R5/8/6N1/7B/4P2r/5K1k w - - 0 1)

Kolpakov, Viktor Sergeevich

Chepizhni-60 JT (Kudesnik), 1994

8/8/2R5/8/6N1/7B/4P2r/5K1k

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Bxg2#
  • Tries
    • 1.Rh6?
      • threat
        • 2.Bg2#
      • 1...Rxh3
        • 2.Rxh3#
      • 1...Rg2
        • 2.Bxg2#
      • 1...Rf2+!
  • Keys
    • 1.Rc1!
      • 1...Rf2+
        • 2.Kxf2#
      • 1...Rxe2
        • 2.Kxe2#
      • 1...Rxh3
        • 2.Kf2#
      • 1...Rg2
        • 2.Bxg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD::B(C),XR(b)
  • Tries
    • Try
      • R(E);
      • Threat
        • B(C)
      • Vars
        • R(b);OGATE,P_SPINR(b),XB(C)::R(E),XR(b)
        • R(b);::R(E)+B(C),DCHECK,XR(b)
      • Refutation
        • R(b);CHECK
  • Actual
    • R(E);
    • Vars
      • R(b);CHECK::R(E)+K(A),XR(b)
      • R(b);XP(B)::R(E)+K(A),XR(b)
      • R(b);XB(C)::R(E)+K(A)
      • R(b);N_GUARD::B(C),XR(b)
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