MESON Chess Problem Database

Problem Display
PID: 22043 (rn4nr/3pR3/2q2kN1/2p2NRp/6pK/6p1/6P1/b3Q3 w - - 0 1)

Funk, Jacob E

Pittsburgh Post, 1923

rn4nr/3pR3/2q2kN1/2p2NRp/6pK/6p1/6P1/b3Q3

#2

7 + 12

887 Mate in Two Moves 1931
133 The Problemist Supplement 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Qxc3#
    • 1...Be5
      • 2.Qxe5#
    • 1...Sa6
      • 2.Qxa1#
    • 1...Sxe7
      • 2.Qxe7#
    • 1...d6
      • 2.Qe6#
  • Keys
    • 1.Sg7!
      • threat
        • 2.Se8#
      • 1...Sxe7
        • 2.Qxe7#
      • 1...Qc8
        • 2.Qf1#
      • 1...Sa6
        • 2.Qxa1#
      • 1...Sh6
        • 2.Sxh5#
      • 1...d5
        • 2.Qf1#
      • 1...d6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB(A),XB(a)
    • B(a);N_GUARD::QAB1(A),XB(a)
    • S(j);S_CUTR(i)::QAB(A),XB(a)
    • S(k);OGATE,XR(G)::QAB1(A),XS(k)
    • P(h);N_GUARD,S_CUTQ(f)::QAR1(A)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • S(k);OGATE,XR(G)::QAB1(A),XS(k)
      • Q(f);N_GUARD::QAR(A)
      • S(j);S_CUTR(i)::QAB(A),XB(a)
      • S(k);S_CUTR(l)::S(D),XP(e)
      • P(h);S_CUTQ(f)::QAR(A)
      • P(h);N_GUARD,S_CUTQ(f)::QAR1(A)
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