MESON Chess Problem Database

Problem Display
PID: 185069 (n3b1q1/r4np1/6Q1/2kB1p1r/P4NP1/8/8/1R1R1Kb1 w - - 0 1)

Sparke, Arthur M

British Chess Magazine, 1917

n3b1q1/r4np1/6Q1/2kB1p1r/P4NP1/8/8/1R1R1Kb1

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd7
      • 2.Rb5#
      • 2.Qc6#
    • 1...Bb5+
      • 2.Rxb5#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Sb6
      • 2.Qxb6#
    • 1...Sc7
      • 2.Qb6#
  • Keys
    • 1.Ba2!
      • threat
        • 2.Rd5#
      • 1...Bb5+
        • 2.Rxb5#
      • 1...fxg4
        • 2.Qc2#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Rd7
        • 2.Rb5#
      • 1...Bd4
        • 2.Sd3#
      • 1...Bc6
        • 2.Se6#
      • 1...Se5
        • 2.Qd6#
      • 1...Sg5
        • 2.Qd6#
      • 1...Sh6
        • 2.Qd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...Sh8
        • 2.Qd6#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sc7
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • B(i);CHECK,N_GUARD::R1(A),XB(i)
    • B(i);N_GUARD::QAR1(H),XB(i)
    • S(h);N_GUARD::QAB1(H),XS(h)
    • S(h);N_GUARD::QAB1(H)
  • Actual
    • B(G);
    • Threat
      • R1(B)
    • Vars
      • B(i);CHECK,N_GUARD::R1(A),XB(i)
      • P(c);OGATE,XP(F)::QAR(H)
      • S(f);N_GUARD::QAB1(H),XS(f)
      • R(e);S_CUTB(i)::R1(A)
      • B(a);SBLOCK::S(E)
      • B(i);SBLOCK::S(E)
      • S(f);N_GUARD::QAB1(H)
      • S(h);N_GUARD::QAB1(H),XS(h)
      • S(h);N_GUARD::QAB1(H)
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