MESON Chess Problem Database

Problem Display
PID: 132235 (8/8/8/2R5/3N1p2/2Nk4/6p1/4K1Q1 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

The Field, 1956

(First published on Thu Jul 19 1956)

8/8/8/2R5/3N1p2/2Nk4/6p1/4K1Q1

#2

5 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sd1?
      • 1...f3
        • 2.Qe3#
      • 1...Ke4!
    • 1.Sd5?
      • 1...f3
        • 2.Qe3#
      • 1...Ke4!
    • 1.Qxg2?
      • threat
        • 2.Qe4#
        • 2.Qd2#
      • 1...Ke3
        • 2.Qe4#
        • 2.Qd2#
      • 1...f3
        • 2.Qd2#
      • 1...Kxd4!
  • Keys
    • 1.Kf2!
      • threat
        • 2.Qd1#
      • 1...Kd2
        • 2.Qd1#
      • 1...Kxd4
        • 2.Ke2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • P(c);N_GUARD::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);N_GUARD::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT,XS(D)
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • QAR2(B)
    • Vars
      • K(b);P-FLIGHT::QAR1(B)
      • K(b);P-FLIGHT,XS(D)::QAB(B)+K(A)
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