MESON Chess Problem Database

Problem Display
PID: 133588 (2Q5/K2pbp2/4p3/8/1R1Pk3/3pNpP1/3P4/8 w - - 0 1)

Holdsworth, J

The Field, 1961

(First published on Thu Jul 13 1961)

2Q5/K2pbp2/4p3/8/1R1Pk3/3pNpP1/3P4/8

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qb7#
      • 2.Qa8#
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qf4#
        • 2.Qe5#
      • 1...Bc5+
        • 2.dxc5#
      • 1...f2
        • 2.Qf4#
      • 1...Bg5
        • 2.Qe5#
        • 2.d5#
      • 1...Bd6
        • 2.Qb7#
      • 1...Bf6
        • 2.Qf4#
      • 1...e5
        • 2.Qxe5#
      • 1...f6
        • 2.Qf4#
      • 1...d6!
    • 1.Qb8?
      • threat
        • 2.Qf4#
        • 2.Qe5#
      • 1...Bc5+
        • 2.dxc5#
      • 1...f2
        • 2.Qf4#
      • 1...Bg5
        • 2.Qe5#
        • 2.d5#
      • 1...Bd6
        • 2.Qb7#
        • 2.Qa8#
      • 1...Bf6
        • 2.Qf4#
      • 1...e5
        • 2.Qxe5#
      • 1...f6
        • 2.Qf4#
      • 1...d6!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qe5#
      • 1...Bc5+
        • 2.dxc5#
      • 1...f2
        • 2.Qh1#
      • 1...Bd6
        • 2.Qa8#
      • 1...Bf6
        • 2.Qh7#
      • 1...e5
        • 2.Qxe5#
      • 1...d6
        • 2.d5#
      • 1...f6
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);CHECK,OGATE::R(D)+P(E),XB(f)
        • P(b);::QAR1(G)
        • B(f);S_CUTP(e)::QAB(G)
        • B(f);::QAR1(G)
        • P(d);::QAR1(G),XP(d)
        • P(g);::QAR1(G)
      • Refutation
        • P(e);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);CHECK,OGATE::R(D)+P(E),XB(f)
        • P(b);::QAR1(G)
        • B(f);::QAR1(G)
        • P(d);::QAR1(G),XP(d)
        • P(g);::QAR1(G)
      • Refutation
        • P(e);
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • B(f);CHECK,OGATE::R(D)+P(E),XB(f)
      • P(b);OGATEB::QAB(G)
      • B(f);S_CUTP(e)::QAB(G)
      • B(f);S_CUTP(g)::QAB(G)
      • P(d);::QAR1(G),XP(d)
      • P(e);S_CUTB(f)::R(D)+P(E)
      • P(g);S_CUTB(f)::QAR(G)
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