MESON Chess Problem Database

Problem Display
PID: 142046 (3Rq3/4P3/1p4N1/2pN4/n1pk4/3P4/1p5p/1b1Q2bK w - - 0 1)

Lane, Henry Fitzgerald William

HM., Leisure Hour, 1900

3Rq3/4P3/1p4N1/2pN4/n1pk4/3P4/1p5p/1b1Q2bK

#2

7 + 10

14867 BCPS Library 2011
56 The Problemist 2013

SOLUTION

  • SOUND
  • Sets
    • 1...cxd3
      • 2.Qg4#
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qe4#
      • 1...Kxd3
        • 2.Sb4#
      • 1...Qxg6
        • 2.Sf6#
      • 1...Qxe7
        • 2.Sdxe7#
      • 1...Bxd3
        • 2.Qe5#
      • 1...cxd3
        • 2.Qh4#
      • 1...Be3
        • 2.Qxe3#
      • 1...Sc3
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(f);P_SPINP(f),SBLOCK,XP(C)::QAR(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(g);P-FLIGHT,XP(C)::R(G)+S(D),DCHECK
      • Q(j);N_GUARD,XS(E)::R(G)+S(D)
      • Q(j);XP(F)::R(G)+S(D),XQ(j)
      • B(a);SBLOCK,XP(C)::QAB1(A)
      • P(f);SBLOCK,XP(C)::QAR(A)
      • B(b);N_GUARD::QAB1(A),XB(b)
      • S(e);N_GUARD::QAB1(A),XS(e)
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