MESON Chess Problem Database

Problem Display
PID: 18017 (6n1/R7/2Ppk2p/3N3r/2QP3p/1K6/8/1B6 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Time & Tide, 1952

6n1/R7/2Ppk2p/3N3r/2QP3p/1K6/8/1B6

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Sf4#
      • 2.Re7#
    • 1...Se7
      • 2.Rxe7#
  • Tries
    • 1.Qe2+?
      • 1...Kxd5
        • 2.Qc4#
        • 2.Qe4#
      • 1...Re5!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qf7#
      • 1...Kxd5
        • 2.Qc4#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Sf6
        • 2.Sf4#
      • 1...Se7
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD::R1(G),XS(f)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(E)::QAB1(C)
      • R(b);N_GUARD::QAB1(C),XR(b)
      • S(f);SBLOCK::S(E)
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