MESON Chess Problem Database

Problem Display
PID: 176310 (3RR3/8/2P3p1/1P3PB1/2PN1p2/nPpBNP2/1pPk4/1nb2K2 w - - 0 1)

Lider, Valentin Viktorovich

4th Prize, Schach-Echo, 1973

3RR3/8/2P3p1/1P3PB1/2PN1p2/nPpBNP2/1pPk4/1nb2K2

#2

14 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • 1...Sxc2
        • 2.Bxc2#
      • 1...Sxc4
        • 2.Bxc4#
      • 1...fxe3
        • 2.Be4#
      • 1...gxf5
        • 2.Bxf5#
      • 1...Sxb5!
  • Keys
    • 1.Be2!
      • 1...Sxc2
        • 2.Sdxc2#
      • 1...Sxc4
        • 2.Sxc4#
      • 1...Sxb5
        • 2.Sxb5#
      • 1...fxe3
        • 2.Bxe3#
      • 1...gxf5
        • 2.Sdxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);
      • Vars
        • S(e);OGATE,XP(B)::R(M)+B(D),XS(e)
        • S(e);OGATE,XP(G)::R(M)+B(D),XS(e)
        • P(g);P_SPINP(g),XS(E)::R(M)+B(D)
        • P(h);OGATE,XP(J)::R(M)+B(D),XP(h)
      • Refutation
        • S(e);XP(I)
  • Actual
    • B(D);
    • Vars
      • S(e);XP(B)::R(M)+S(H),XS(e)
      • S(e);XP(G)::S(E),XS(e)
      • S(e);XP(I)::R(M)+S(H),XS(e)
      • P(g);OGATE,P_SPINP(g),XS(E)::B(K),XP(g)
      • P(h);XP(J)::R(M)+S(H),XP(h)
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