MESON Chess Problem Database

Problem Display
PID: 149257 (n3N2n/3pNPqr/3Bk1p1/7p/2P4P/3p4/8/5Q1K w - - 0 1)

Dawson, Thomas Rayner

Cheltenham Chronicle, 1920

(First published on Sat Apr 10 1920)

n3N2n/3pNPqr/3Bk1p1/7p/2P4P/3p4/8/5Q1K

#2

8 + 9

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.f8S#
    • 1...Qb2
      • 2.f8S#
    • 1...Qc3
      • 2.f8S#
    • 1...Qd4
      • 2.f8S#
    • 1...Qe5
      • 2.f8S#
    • 1...Qf6
      • 2.Qxf6#
    • 1...Qh6
      • 2.Qf6#
    • 1...Qf8
      • 2.Qf6#
    • 1...Qxf7
      • 2.Qe1#
    • 1...Qg8
      • 2.Qf6#
    • 1...Sxf7
      • 2.Qh3#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Sd8#
      • 1...Sxf7
        • 2.Qh3#
      • 1...Qf6
        • 2.Qxf6#
      • 1...dxc6!
  • Keys
    • 1.c5!
      • 1...Qxf7
        • 2.Qe1#
      • 1...Sxf7
        • 2.Qh3#
      • 1...Qf6
        • 2.Qxf6#
      • 1...Rh6
        • 2.Sxg7#
      • 1...Qa1
        • 2.f8S#
      • 1...Qb2
        • 2.f8S#
      • 1...Qc3
        • 2.f8S#
      • 1...Qd4
        • 2.f8S#
      • 1...Qe5
        • 2.f8S#
      • 1...Qh6
        • 2.Qf6#
      • 1...Qf8
        • 2.Qf6#
      • 1...Qg8
        • 2.Qf6#
      • 1...Sb6
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...d2
        • 2.Qc4#
      • 1...g5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(f);N_GUARD,P_PINQ(A)::P=S
    • Q(f);N_GUARD::P=S
    • Q(f);N_GUARD::QAR1(A),XQ(f)
    • Q(f);N_GUARD::QAR1(A)
    • Q(f);N_GUARD,SBLOCK,XP(G)::QAR(A)
    • S(i);SBLOCK,XP(G)::QAB(A)
    • P(d);N_GUARD::QAB1(A)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • S(i);SBLOCK,XP(G)::QAB(A)
        • Q(f);N_GUARD::QAR1(A),XQ(f)
      • Refutation
        • P(e);XS(F)
  • Actual
    • P(C);
    • Vars
      • Q(f);N_GUARD,SBLOCK,XP(G)::QAR(A)
      • S(i);SBLOCK,XP(G)::QAB(A)
      • Q(f);N_GUARD::QAR1(A),XQ(f)
      • R(g);N_GUARD::S(H),XQ(f)
      • Q(f);N_GUARD,P_PINQ(A)::P=S
      • Q(f);N_GUARD::P=S
      • Q(f);N_GUARD::QAR1(A)
      • S(h);N_GUARD::S(H)
      • S(h);N_GUARD::S(H),XS(h)
      • P(a);OGATE::QAB(A)
      • P(d);N_GUARD::QAB1(A)
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