MESON Chess Problem Database

Problem Display
PID: 52438 (1Q4K1/2pkppR1/R6p/7q/2N4b/1B6/8/8 w - - 0 1)

Howard, Kenneth Samuel

British Chess Magazine, 1934

1Q4K1/2pkppR1/R6p/7q/2N4b/1B6/8/8

#2

6 + 7

5089 The Enjoyment of Chess Problems 1943

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Se5#
    • 1...Qf3
      • 2.Se5#
    • 1...Qg4
      • 2.Se5#
    • 1...Qg6
      • 2.Se5#
    • 1...Qe5
      • 2.Sxe5#
    • 1...Bg5
      • 2.Se5#
    • 1...c5
      • 2.Ba4#
    • 1...c6
      • 2.Sb6#
    • 1...f5
      • 2.Se5#
  • Tries
    • 1.Ba4+?
      • 1...Qb5
        • 2.Se5#
      • 1...c6!
    • 1.Qxc7+?
      • 1...Ke8
        • 2.Ra8#
        • 2.Qc8#
      • 1...Kxc7!
  • Keys
    • 1.Kf8!
      • threat
        • 2.Qe8#
      • 1...c6
        • 2.Sb6#
      • 1...c5
        • 2.Ba4#
      • 1...f5
        • 2.Se5#
      • 1...f6
        • 2.Rxe7#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(b);N_GUARD::S(B)
    • Q(b);N_GUARD,P_PINR(D)::S(B)
    • Q(b);N_GUARD::S(B),XQ(b)
    • B(a);S_CUTQ(b)::S(B)
    • P(d);N_GUARD,S_CUTQ(b)::B(A)
    • P(d);N_GUARD,SBLOCK::S(B)
    • P(g);P_SPINP(f),S_CUTQ(b)::S(B)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • Q(b);P_SPINQ(b)::S(B)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • Q(E);CHECK,XP(d)
      • Refutation
        • K(e);P-FLIGHT,XQ(E)
  • Actual
    • K(F);P-FLIGHT
    • Threat
      • QAB1(E)
    • Vars
      • P(d);N_GUARD,SBLOCK::S(B)
      • P(d);N_GUARD,S_CUTQ(b)::B(A)
      • P(g);P_SPINP(f),S_CUTQ(b)::S(B)
      • P(g);OGATE,P_SPINP(f)::R1(D),XP(f)
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