MESON Chess Problem Database

Problem Display
PID: 221472 (K3B3/1N6/kB6/8/8/8/6r1/1R3bbQ w - - 0 1)

Moen, Kabe

SuperProblem, 2019

K3B3/1N6/kB6/8/8/8/6r1/1R3bbQ

#2

6 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Sc5#
    • 1...Bf2
      • 2.Qxf1#
    • 1...Bh2
      • 2.Sc5#
    • 1...Bc5
      • 2.Sxc5#
  • Tries
    • 1.Bxg1?
      • threat
        • 2.Rb6#
      • 1...Rxg1
        • 2.Qc6#
      • 1...Rf2
        • 2.Qc6#
      • 1...Rg6
        • 2.Ra1#
      • 1...Bb5
        • 2.Bxb5#
      • 1...Rb2!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Ra1#
        • 2.Rb6#
      • 1...Rxf2
        • 2.Qc6#
      • 1...Bxf2
        • 2.Qxf1#
      • 1...Rg3
        • 2.Rb6#
        • 2.Qc6#
      • 1...Rg4
        • 2.Rb6#
        • 2.Qc6#
      • 1...Rg5
        • 2.Rb6#
        • 2.Qc6#
      • 1...Rg6
        • 2.Ra1#
      • 1...Bc4
        • 2.Rb6#
      • 1...Bb5
        • 2.Bxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(c);S_CUTB(b)::S(D)
    • B(b);OGATE::QAB(B),XB(a)
    • B(b);N_GUARD::S(D)
    • B(b);N_GUARD::S(D),XB(b)
  • Tries
    • Try
      • B(C);XB(b)
      • Threat
        • R1(A)
      • Vars
        • R(c);OGATE,XB(C)::QAR2(B)
        • R(c);OGATE::QAR2(B)
        • R(c);N_GUARD::R(A)
        • B(a);N_GUARD::B(F),XB(a)
      • Refutation
        • R(c);
  • Actual
    • B(C);
    • Threat
      • DUALS(2)
    • Vars
      • R(c);OGATE,XB(C)::QAR2(B)
      • B(b);OGATE,XB(C)::QAB(B),XB(a)
      • R(c);::R(A)
      • B(a);::R1(A)
      • B(a);N_GUARD::B(F),XB(a)
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