MESON Chess Problem Database

Problem Display
PID: 63611 (7b/4p3/4N1n1/3P4/4k1Pn/5N2/Q1KP2R1/8 w - - 0 1)

Daniel, Arthur William

Love, DS

Chess Amateur (The), 1909

7b/4p3/4N1n1/3P4/4k1Pn/5N2/Q1KP2R1/8

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Sfg5#
    • 1...Sxf3
      • 2.Re2#
    • 1...Sf4
      • 2.Seg5#
    • 1...Se5
      • 2.Sfg5#
  • Tries
    • 1.Qc4+?
      • 1...Kxf3
        • 2.Qe2#
      • 1...Bd4!
    • 1.d6?
      • threat
        • 2.Qa8#
      • 1...Kxf3
        • 2.Qd5#
        • 2.Qa8#
      • 1...Sxf3
        • 2.Re2#
      • 1...Sf4
        • 2.Seg5#
      • 1...Se5
        • 2.Sfg5#
      • 1...exd6!
  • Keys
    • 1.Qa8!
      • threat
        • 2.d6#
      • 1...Kxf3
        • 2.d6#
      • 1...Sxf3
        • 2.Re2#
      • 1...Sf4
        • 2.Seg5#
      • 1...Se5
        • 2.Sfg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(e);SBLOCK::S(E)
    • S(b);SBLOCK,XS(E)::R(D)
    • S(c);SBLOCK::S(H)
    • S(c);SBLOCK::S(E)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(E)::QAB1(A)
      • Refutation
        • B(e);P_SPINB(e)
    • Try
      • P(G);
      • Threat
        • QAB(A)
      • Vars
        • S(b);SBLOCK,XS(E)::R(D)
        • S(c);SBLOCK::S(H)
        • S(c);SBLOCK::S(E)
      • Refutation
        • P(d);XP(G)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+P(G)
    • Vars
      • K(a);S_FLIGHT,XS(E)::QAB(A)+P(G)
      • S(b);SBLOCK,XS(E)::R(D)
      • S(c);SBLOCK::S(H)
      • S(c);SBLOCK::S(E)
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