MESON Chess Problem Database

Problem Display
PID: 257959 (1b6/q1p3NK/r6p/4BR1B/6Pk/7N/3p4/5Q2 w - - 0 1)

Howard, Kenneth Samuel

British Chess Magazine, 1934

1b6/q1p3NK/r6p/4BR1B/6Pk/7N/3p4/5Q2

#2

8 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qh3#
      • 1...Kg3
        • 2.Sg6#
      • 1...Ra3
        • 2.Sg6#
      • 1...Qe3!
    • 1.Qf2+?
      • 1...Kxh3
        • 2.Rf3#
        • 2.Qg3#
        • 2.Qh2#
      • 1...Qxf2!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Sf5#
        • 2.Bg3#
      • 1...Qg1
        • 2.Sf5#
      • 1...Qf2
        • 2.Sf5#
        • 2.Qxf2#
      • 1...Rf6
        • 2.Bg3#
        • 2.Bxf6#
      • 1...c5
        • 2.Qf2#
      • 1...c6
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);S_CUTR(c),S_FLIGHT::B(D)+S(B)
        • R(c);N_GUARD::S(B)
      • Refutation
        • Q(e);
    • Try
      • Q(A);CHECK
      • Refutation
        • Q(e);XQ(A)
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • Q(e);::S(G)
      • P(f);P_PINS(G),S_CUTQ(e)::QAB(A)
      • P(f);P_PINS(G),S_CUTR(c)::B(D)
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