MESON Chess Problem Database

Problem Display
PID: 234472 (b7/6r1/n3Q3/8/2NkB2n/B7/7b/K2N4 w - - 0 1)

Makaronets, Leonid

Buletin Problemistic, 1979

b7/6r1/n3Q3/8/2NkB2n/B7/7b/K2N4

#2

6 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb7
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Sc5
      • 2.Bb2#
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sb3#
      • 1...Bxe4
        • 2.Qxe4#
      • 1...Rg3
        • 2.Qf6#
      • 1...Rb7
        • 2.Qd5#
      • 1...Be5
        • 2.Qc4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sc5
        • 2.Bb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(e);S_CUTB(f)::QAR1(F)
    • B(f);N_GUARD::QAR1(F),XB(f)
    • S(d);SBLOCK::B(C)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • B(f);OGATE,XB(E)::QAR1(F),XB(f)
      • R(e);S_CUTB(a)::QAB(F)
      • R(e);S_CUTB(f)::QAR1(F)
      • B(a);SBLOCK::QAR1(F)
      • B(f);N_GUARD::QAR1(F),XB(f)
      • S(d);SBLOCK::B(C)
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