MESON Chess Problem Database

Problem Display
PID: 193930 (1qn3n1/5R2/2p4N/1p1Pk3/7K/8/2BQ4/b2b4 w - - 0 1)

MacBride, Robert C

Brisbane Courier, 1916

1qn3n1/5R2/2p4N/1p1Pk3/7K/8/2BQ4/b2b4

#2

6 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Rf5#
  • Keys
    • 1.Rf6!
      • threat
        • 2.Re6#
      • 1...Kxf6
        • 2.Qg5#
      • 1...Sxf6
        • 2.Sf7#
      • 1...cxd5
        • 2.Qf4#
      • 1...Bd4
        • 2.Qg5#
      • 1...Qd6
        • 2.Rf5#
      • 1...Bg4
        • 2.Sxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(f);SBLOCK::R1(F)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • K(d);S_FLIGHT,XR(F)::QAB1(B)
      • S(h);SBLOCK,XR(F)::S(E)
      • P(e);SBLOCK,XP(D)::QAB1(B)
      • B(a);SBLOCK::QAR2(B)
      • Q(f);SBLOCK::R1(F)
      • B(b);N_GUARD::S(E),XB(b)
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