MESON Chess Problem Database

Problem Display
PID: 124492 (B7/6PQ/4R3/1p1nPrPN/1p1PkPN1/1K6/6P1/3R4 w - - 0 1)

Lider, Valentin Viktorovich

Sachove umeni (Ceskoslovensky sach), 1975

B7/6PQ/4R3/1p1nPrPN/1p1PkPN1/1K6/6P1/3R4

#2

13 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rc6?
      • 1...Sxf4
        • 2.Shf6#
      • 1...Sc3
        • 2.Rxc3#
      • 1...Se3
        • 2.Sgf6#
      • 1...Sb6
        • 2.Rxb6#
      • 1...Sf6
        • 2.Rxf6#
      • 1...Sc7
        • 2.Rxc7#
      • 1...Se7!
  • Keys
    • 1.Rg6!
      • 1...Rxf4
        • 2.Sg3#
      • 1...Rxe5
        • 2.Re6#
      • 1...Rxg5
        • 2.Rxg5#
      • 1...Rf6
        • 2.Rxf6#
      • 1...Rf7
        • 2.Rf6#
      • 1...Rf8
        • 2.Rf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(J);N_PINS(d)
      • Vars
        • S(d);N_GUARD,SBLOCK,XP(E)::S(I)
        • S(d);OGATEB::B(M)+R(J),XS(d)
        • S(d);N_GUARD,SBLOCK::S(F)
      • Refutation
        • S(d);
  • Actual
    • R(J);N_PINR(e)
    • Vars
      • R(e);SBLOCK,XP(E)::S(I)
      • R(e);OGATEB,XP(G)::QAB(L)+R(J)
      • R(e);OGATE,XP(H)::QAB(L)+R(J),XR(e)
      • R(e);OGATEB::QAB(L)+R(J),XR(e)
      • R(e);OGATEB::QAB(L)+R(J)
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