MESON Chess Problem Database

Problem Display
PID: 9581 (6b1/1BQ1p3/3pP3/1pN1N2R/1q1k2p1/1p6/1P1p1P2/3K4 w - - 0 1)

Heathcote, Godfrey

Chess Amateur (The), 1906

6b1/1BQ1p3/3pP3/1pN1N2R/1q1k2p1/1p6/1P1p1P2/3K4

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Sxb3#
    • 1...Qc4
      • 2.Sc6#
    • 1...Bxe6
      • 2.Sxe6#
    • 1...dxc5
      • 2.Qd8#
      • 2.Qd7#
  • Tries
    • 1.Sf3+?
      • 1...Kc4
        • 2.Bd5#
      • 1...gxf3!
    • 1.Qc6?
      • threat
        • 2.Qd5#
      • 1...Qxc5
        • 2.Qe4#
      • 1...Bxe6
        • 2.Sxe6#
      • 1...d5
        • 2.Qxd5#
      • 1...Qc4!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qxb4#
      • 1...Kxc5
        • 2.Qa7#
      • 1...Qxa5
        • 2.Sxb3#
      • 1...Qxc5
        • 2.Qxd2#
      • 1...Bxe6
        • 2.Sxe6#
      • 1...dxc5
        • 2.Qd8#
      • 1...Qa3
        • 2.Qc3#
      • 1...Qc3
        • 2.Qxc3#
      • 1...Qa4
        • 2.Qc3#
      • 1...Qc4
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • Q(c);N_GUARD::S(D),XP(b)
    • Q(c);SBLOCK::S(E)
    • B(i);XP(G)::S(D),XB(i)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P-FLIGHT::B(H)
      • Refutation
        • P(e);XS(E)
    • Try
      • Q(I);
      • Threat
        • QAR1(I)
      • Vars
        • Q(c);SBLOCK,XS(D)::QAR1(I)
        • B(i);XP(G)::S(D),XB(i)
        • P(g);::QAR1(I),XP(g)
      • Refutation
        • Q(c);
  • Actual
    • Q(I);
    • Threat
      • QAR2(I),XQ(c)
    • Vars
      • K(d);OGATEB,P_SPINP(f),S_FLIGHT,XS(D)::QAB(I)
      • Q(c);N_GUARD,XQ(I)::S(D),XP(b)
      • Q(c);OGATE,SBLOCK,XS(D)::QAR2(I),XP(a)
      • B(i);XP(G)::S(D),XB(i)
      • P(g);OGATEB,SBLOCK,XS(D)::QAR(I)
      • Q(c);OGATE::QAB1(I)
      • Q(c);OGATE::QAB1(I),XQ(c)
      • Q(c);SBLOCK::S(E)
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