MESON Chess Problem Database

Problem Display
PID: 287384 (KQ6/8/8/3p2pr/1B1k4/N4P2/1n3P2/2N5 w - - 0 1)

Holroyd, George C

Daily Telegraph, 1923

(First published on Sat Jun 23 1923)

KQ6/8/8/3p2pr/1B1k4/N4P2/1n3P2/2N5

#2

7 + 5

15239 Valois Notebooks 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Rh8
      • 2.Qxh8#
    • 1...Sd3
      • 2.Se2#
      • 2.Sb3#
    • 1...Sc4
      • 2.Sc2#
      • 2.Sb5#
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.Bc3+?
      • 1...Kc5
        • 2.Qc7#
      • 1...Kxc3!
    • 1.Bc5+?
      • 1...Kc3
        • 2.Qb4#
      • 1...Kxc5!
    • 1.Qc7?
      • threat
        • 2.Sc2#
        • 2.Sb5#
        • 2.Bc3#
        • 2.Qc3#
        • 2.Qg7#
      • 1...Rh6
        • 2.Sc2#
        • 2.Sb5#
        • 2.Bc3#
        • 2.Qc3#
      • 1...Rh7
        • 2.Sc2#
        • 2.Sb5#
        • 2.Bc3#
        • 2.Qc3#
      • 1...Sd1
        • 2.Sc2#
        • 2.Sb5#
        • 2.Qg7#
      • 1...Sd3
        • 2.Se2#
        • 2.Sb3#
        • 2.Sc2#
        • 2.Sb5#
        • 2.Bc3#
        • 2.Qc3#
      • 1...Sa4
        • 2.Sc2#
        • 2.Sb5#
        • 2.Qg7#
      • 1...Sc4
        • 2.Sc2#
        • 2.Sb5#
      • 1...g4
        • 2.Sc2#
        • 2.Sb5#
        • 2.Bc3#
        • 2.Qf4#
        • 2.Qc3#
      • 1...Rh8+!
    • 1.Qe8?
      • threat
        • 2.Qe3#
      • 1...Rh8
        • 2.Qxh8#
      • 1...Sc4
        • 2.Sc2#
        • 2.Sb5#
      • 1...Sd1!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Qxb2#
      • 1...Kc3
        • 2.Qb4#
      • 1...Rh8
        • 2.Qxh8#
      • 1...Sd1
        • 2.Qb4#
      • 1...Sd3
        • 2.Se2#
      • 1...Sa4
        • 2.Qb4#
      • 1...Sc4
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD,P_PINQ(G)::QAB(G),XR(e)
    • P(d);N_GUARD::QAR2(G)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(G)
      • Refutation
        • K(b);S_FLIGHT,XB(E)
    • Try
      • B(E);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB1(G)
      • Refutation
        • K(b);S_FLIGHT,XB(E)
    • Try
      • Q(G);
      • Threat
        • DUALS(5)
      • Refutation
        • R(e);CHECK
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • R(e);N_GUARD,P_PINQ(G)::QAB(G),XR(e)
      • Refutation
        • S(a);
  • Actual
    • B(E);
    • Threat
      • QAB(G),XS(a)
    • Vars
      • K(b);S_CUTS(a),S_FLIGHT::QAB1(G)
      • R(e);N_GUARD,P_PINQ(G)::QAB(G),XR(e)
      • S(a);N_GUARD::QAR2(G)
      • S(a);SBLOCK::S(A)
      • S(a);SBLOCK::S(C)
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