MESON Chess Problem Database

Problem Display
PID: 93742 (k1N1R3/8/N1n5/3n4/1R6/8/8/4K3 w - - 0 1)

Cumpe, Josef

Casopis ceskoslovenskych sachistu, 1908

k1N1R3/8/N1n5/3n4/1R6/8/8/4K3

#2

5 + 3

13255 Hoekstenen 1967
5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Sc7#
    • 1...Se3
      • 2.Sc7#
    • 1...Sf4
      • 2.Sc7#
    • 1...Sf6
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
    • 1...Sde7
      • 2.Sc7#
    • 1...Sd4
      • 2.Rb8#
    • 1...Sa5
      • 2.Rb8#
    • 1...Se5
      • 2.Rb8#
    • 1...Sa7
      • 2.Rb8#
    • 1...Sce7
      • 2.Rb8#
    • 1...Sb8
      • 2.Rxb8#
    • 1...Sd8
      • 2.Rb8#
  • Tries
    • 1.Rb5?
      • 1...Sb8
        • 2.Rxb8#
      • 1...Sc3
        • 2.Sc7#
      • 1...Se3
        • 2.Sc7#
      • 1...Sdb4
        • 2.Sc7#
      • 1...Sf4
        • 2.Sc7#
      • 1...Sf6
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sde7
        • 2.Sc7#
      • 1...Scb4
        • 2.Rb8#
      • 1...Sd4
        • 2.Rb8#
      • 1...Sa5
        • 2.Rb8#
      • 1...Se5
        • 2.Rb8#
      • 1...Sa7
        • 2.Rb8#
      • 1...Sce7
        • 2.Rb8#
      • 1...Sd8
        • 2.Rb8#
      • 1...Sb6!
    • 1.Rb6?
      • 1...Sb8
        • 2.Rxb8#
      • 1...Sc3
        • 2.Sc7#
      • 1...Se3
        • 2.Sc7#
      • 1...Sdb4
        • 2.Sc7#
      • 1...Sf4
        • 2.Sc7#
      • 1...Sf6
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sde7
        • 2.Sc7#
      • 1...Scb4
        • 2.Rb8#
      • 1...Sd4
        • 2.Rb8#
      • 1...Sa5
        • 2.Rb8#
      • 1...Se5
        • 2.Rb8#
      • 1...Sa7
        • 2.Rb8#
      • 1...Sce7
        • 2.Rb8#
      • 1...Sd8
        • 2.Rb8#
      • 1...Sxb6!
  • Keys
    • 1.Re7!
      • 1...Sdxb4
        • 2.Sb6#
      • 1...Sdxe7
        • 2.Sc7#
      • 1...Scxb4
        • 2.Ra7#
      • 1...Scxe7
        • 2.Rb8#
      • 1...Sb8
        • 2.Rxb8#
        • 2.Ra7#
      • 1...Sc3
        • 2.Sc7#
        • 2.Sb6#
      • 1...Se3
        • 2.Sc7#
        • 2.Sb6#
      • 1...Sf4
        • 2.Sc7#
        • 2.Sb6#
      • 1...Sb6
        • 2.Sxb6#
      • 1...Sf6
        • 2.Sc7#
        • 2.Sb6#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sd4
        • 2.Rb8#
        • 2.Ra7#
      • 1...Sa5
        • 2.Rb8#
        • 2.Ra7#
      • 1...Se5
        • 2.Rb8#
        • 2.Ra7#
      • 1...Sa7
        • 2.Rb8#
        • 2.Rxa7#
      • 1...Sd8
        • 2.Rb8#
        • 2.Ra7#

Anticipated by 120111(1903)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • S(b);N_GUARD::R1(B)
    • S(b);N_GUARD::R1(B),XS(b)
  • Tries
    • Try
      • R(B);
      • Vars
        • S(b);N_GUARD::R1(B),XS(b)
        • S(a);N_GUARD::S(C)
        • S(a);N_GUARD::S(C),XS(a)
        • S(b);N_GUARD::R1(B)
      • Refutation
        • S(a);
    • Try
      • R(B);
      • Vars
        • S(b);N_GUARD::R1(B),XS(b)
        • S(a);N_GUARD::S(C)
        • S(a);N_GUARD::S(C),XS(a)
        • S(b);N_GUARD::R1(B)
      • Refutation
        • S(a);XR(B)
  • Actual
    • R(E);
    • Vars
      • S(a);N_GUARD,XR(B)::S(D)
      • S(a);N_GUARD,XR(E)::S(C)
      • S(b);N_GUARD,XR(B)::R1(E)
      • S(b);N_GUARD,XR(E)::R1(B)
      • S(a);N_GUARD::S(D),XS(a)
      • S(a);N_GUARD::S(C),XS(a)
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