MESON Chess Problem Database

Problem Display
PID: 269833 (8/3n1p2/1pn2Qq1/2Pk4/r2N4/1N2R1p1/pPPb4/K4B1b w - - 0 1)

Harding, AA

Sunday Referee, 1931

(First published on Sun Feb 1 1931)

8/3n1p2/1pn2Qq1/2Pk4/r2N4/1N2R1p1/pPPb4/K4B1b

#2

9 + 11

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc2
      • 2.Qxc6#
      • 2.Qd6#
      • 2.Qxf7#
    • 1...Qd3
      • 2.Qxf7#
    • 1...Qe4
      • 2.Qd6#
    • 1...Qf5
      • 2.Qxc6#
      • 2.Qd6#
    • 1...Qh5
      • 2.Qxc6#
      • 2.Qd6#
    • 1...Qh7
      • 2.Qxc6#
      • 2.Qd6#
    • 1...Qg4
      • 2.Qxc6#
      • 2.Qd6#
    • 1...Qg5
      • 2.Qxc6#
      • 2.Qd6#
      • 2.Qxf7#
    • 1...Qg7
      • 2.Qxc6#
      • 2.Qd6#
    • 1...Qg8
      • 2.Qxc6#
      • 2.Qd6#
    • 1...Ra3
      • 2.c4#
    • 1...Ra5
      • 2.c4#
    • 1...Ra6
      • 2.c4#
    • 1...Ra7
      • 2.c4#
    • 1...Ra8
      • 2.c4#
    • 1...Bb4
      • 2.c4#
    • 1...Sb4
      • 2.c4#
  • Tries
    • 1.Qxf7+?
      • 1...Qe6
        • 2.Qxe6#
      • 1...Qxf7!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sc7#
      • 1...Bxe3
        • 2.Sc3#
      • 1...Qd3
        • 2.Qxf7#
      • 1...Ra7
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(i);N_GUARD::QAB(I),XP(k)
    • Q(i);N_GUARD::QAR1(I)
    • R(e);N_GUARD::P(D)
    • B(c);S_CUTR(e)::P(D)
    • S(h);S_CUTR(e)::P(D)
  • Tries
    • Try
      • Q(I);CHECK,XP(k)
      • Vars
        • Q(i);N_GUARD,P_SPINQ(i)::QAB1(I),XQ(i)
      • Refutation
        • Q(i);XQ(I)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • B(c);N_GUARD,XR(F)::S(G)
      • Q(i);N_GUARD::QAB(I),XP(k)
      • R(e);N_GUARD::P(D)
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