MESON Chess Problem Database

Problem Display
PID: 194053 (8/8/8/3B3R/6n1/4k3/2K2RP1/6B1 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Source?, 1917

8/8/8/3B3R/6n1/4k3/2K2RP1/6B1

#2

6 + 2

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rd2#
      • 2.Rf4#
  • Tries
    • 1.Kc3?
      • threat
        • 2.Rh3#
      • 1...Sh2
        • 2.Re5#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sxf2!
    • 1.Rf1+?
      • 1...Ke2
        • 2.Bc4#
      • 1...Sf2!
    • 1.Rhf5?
      • 1...Kd4
        • 2.Rd2#
        • 2.R2f4#
      • 1...Sh2
        • 2.Rd2#
      • 1...Se5
        • 2.Rd2#
      • 1...Sf6
        • 2.Rd2#
      • 1...Sh6
        • 2.Rd2#
      • 1...Sxf2!
    • 1.g3?
      • 1...Kd4
        • 2.Rd2#
        • 2.Rf4#
      • 1...Sh2
        • 2.Rd2#
        • 2.Rg2#
        • 2.Rfxh2#
      • 1...Se5
        • 2.Rd2#
        • 2.Rg2#
        • 2.Rfh2#
      • 1...Sf6
        • 2.Rd2#
        • 2.Rg2#
        • 2.Rfh2#
      • 1...Sh6
        • 2.Rd2#
        • 2.Rg2#
        • 2.Rfh2#
      • 1...Sxf2!
  • Keys
    • 1.Rh4!
      • 1...Kd4
        • 2.Rf5#
      • 1...Sxf2
        • 2.Re4#
      • 1...Sh2
        • 2.Rd2#
        • 2.Re4#
      • 1...Se5
        • 2.Rd2#
        • 2.Re4#
      • 1...Sf6
        • 2.Rd2#
      • 1...Sh6
        • 2.Rd2#
        • 2.Re4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • R(F)
      • Vars
        • S(b);N_GUARD::R(F)
        • S(b);N_GUARD::R(F),XS(b)
      • Refutation
        • S(b);P_SPINS(b),XR(C)
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P-FLIGHT::B(E)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • R(F);
      • Vars
        • S(b);N_GUARD::B(A)+R(C)
      • Refutation
        • S(b);P_SPINS(b),XR(C)
    • Try
      • P(D);
      • Refutation
        • S(b);P_SPINS(b),XR(C)
  • Actual
    • R(F);
    • Vars
      • K(a);P_SPINS(b),S_FLIGHT::B(A)+R(C)
      • S(b);OGATE,P_SPINS(b),XR(C)::R1(F)
      • S(b);N_GUARD::B(A)+R(C)
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