MESON Chess Problem Database

Problem Display
PID: 57239 (3B4/5pK1/3R4/4p2p/6k1/5R2/5P2/3B4 w - - 0 1)

Ulanov, Lev

Troll, 1996

3B4/5pK1/3R4/4p2p/6k1/5R2/5P2/3B4

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Rg6#
  • Tries
    • 1.Rd4+?
      • 1...e4
        • 2.Rxe4#
      • 1...exd4!
  • Keys
    • 1.Rdf6!
      • 1...Kh4
        • 2.R6f4#
      • 1...Kg5
        • 2.Rg6#
      • 1...e4
        • 2.R6f4#
      • 1...h4
        • 2.Rg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(d);N_GUARD::R(D)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • P(b);P_SPINP(b)::R(D),XP(b)
      • Refutation
        • P(b);XR(D)
  • Actual
    • R(D);
    • Vars
      • K(a);P-FLIGHT::B(F)+R(D),DCHECK
      • P(b);N_GUARD::R1(D)
      • P(c);SBLOCK::B(A)+R(C),DCHECK
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