MESON Chess Problem Database

Problem Display
PID: 77021 (3q3B/5Pn1/3P2Rr/1N1pk1pN/2p5/8/p2Q1b1p/1B4nK w - - 0 1)

Hicks, GJ

The Tablet, 1948

(First published on Sat Jul 10 1948)

3q3B/5Pn1/3P2Rr/1N1pk1pN/2p5/8/p2Q1b1p/1B4nK

#2

9 + 11

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Bxg7#
      • 2.Qxg5#
    • 1...Qb6
      • 2.Bxg7#
      • 2.Qxg5#
    • 1...Qc7
      • 2.Bxg7#
      • 2.Qxg5#
    • 1...Qxd6
      • 2.Qxg5#
    • 1...Qd7
      • 2.Bxg7#
    • 1...Qa8
      • 2.Bxg7#
      • 2.Qxg5#
    • 1...Qb8
      • 2.Bxg7#
      • 2.Qxg5#
    • 1...Qc8
      • 2.Bxg7#
    • 1...Qe8
      • 2.Bxg7#
      • 2.Qxg5#
      • 2.fxe8Q#
      • 2.fxe8R#
    • 1...Qf8
      • 2.Qxg5#
    • 1...Qg8
      • 2.Qxg5#
    • 1...Be1
      • 2.Qe3#
      • 2.Qd4#
    • 1...Be3
      • 2.Qxe3#
    • 1...Bg3
      • 2.Qe3#
      • 2.Qd4#
    • 1...Bd4
      • 2.Qxh2#
      • 2.Qxd4#
    • 1...Bh4
      • 2.Qe3#
      • 2.Qd4#
    • 1...Bc5
      • 2.Qxh2#
    • 1...Bb6
      • 2.Qxh2#
    • 1...Ba7
      • 2.Qxh2#
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.Qc3+?
      • 1...Bd4
        • 2.Qxd4#
        • 2.Qg3#
      • 1...d4!
    • 1.Qe2+?
      • 1...Be3
        • 2.Qxe3#
      • 1...Sxe2!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Qxd5#
      • 1...Qxc7
        • 2.Bxg7#
      • 1...Qxd6
        • 2.Rxg5#
      • 1...Rxh5
        • 2.Re6#
      • 1...Qa8
        • 2.Bxg7#
      • 1...Bd4
        • 2.Qxh2#
      • 1...d4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 9
  • Sets
    • Q(k);N_GUARD,XP(F)::QAR2(C),XP(h)
    • Q(k);N_GUARD::B(I),XS(j)
    • Q(k);N_GUARD::QAR2(C),XP(h)
    • B(c);N_GUARD::QAR2(C),XB(c)
    • B(c);OGATE::QAB(C),XP(d)
    • P(h);N_GUARD::QAB1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • Q(C);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAR2(C),XB(c)
      • Refutation
        • S(a);XQ(C)
  • Actual
    • S(D);
    • Threat
      • QAR1(C),XP(f)
    • Vars
      • Q(k);N_GUARD,XS(D)::B(I),XS(j)
      • Q(k);N_GUARD,SBLOCK,XP(F)::R(G),XP(h)
      • R(i);N_GUARD,XS(E)::R1(G)
      • Q(k);N_GUARD::B(I),XS(j)
      • B(c);OGATE,SBLOCK::QAB(C),XP(d)
      • P(f);OGATEB,SBLOCK::QAR(C)
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