MESON Chess Problem Database

Problem Display
PID: 180295 (8/8/1p6/PpP3pR/1pk1P3/1N1Rp3/3PK3/8 w - - 0 1)

Lider, Valentin Viktorovich

Schweizerische Schachzeitung, 1989

8/8/1p6/PpP3pR/1pk1P3/1N1Rp3/3PK3/8

#2

8 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.dxe3?
      • 1...bxc5
        • 2.Sd2#
      • 1...g4
        • 2.Sd2#
      • 1...bxa5!
    • 1.axb6?
      • 1...g4
        • 2.Sa5#
      • 1...exd2!
    • 1.cxb6?
      • 1...g4
        • 2.Rc5#
      • 1...exd2!
  • Keys
    • 1.Rxg5!
      • 1...exd2
        • 2.Sxd2#
      • 1...bxa5
        • 2.Sxa5#
      • 1...bxc5
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(A);XP(a)
      • Vars
        • P(f);SBLOCK,XP(G)::S(C)
        • P(e);::S(C)
      • Refutation
        • P(f);XP(F)
    • Try
      • P(F);XP(f)
      • Vars
        • P(e);::S(C)
      • Refutation
        • P(a);XP(A)
    • Try
      • P(G);XP(f)
      • Vars
        • P(e);OGATE::R1(H)
      • Refutation
        • P(a);XP(A)
  • Actual
    • R(H);XP(e)
    • Vars
      • P(a);XP(A)::S(C),XP(a)
      • P(f);XP(F)::S(C),XP(f)
      • P(f);OGATE,XP(G)::R1(H),XP(f)
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