MESON Chess Problem Database

Problem Display
PID: 152797 (3Q4/1K2B3/2pN4/3p4/1PP2Np1/2k2bR1/R3PP2/3B4 w - - 0 1)

Harley, Brian

British Chess Magazine, 1933

3Q4/1K2B3/2pN4/3p4/1PP2Np1/2k2bR1/R3PP2/3B4

#2

12 + 5

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb4
      • 2.Qa5#
    • 1...Kd4
      • 2.Bf6#
      • 2.Qh8#
    • 1...dxc4
      • 2.Se4#
  • Tries
    • 1.Sxd5+?
      • 1...Kd4
        • 2.Bf6#
        • 2.Qh8#
      • 1...cxd5!
    • 1.Bf6+?
      • 1...Kxb4
        • 2.Sd3#
        • 2.Qa5#
        • 2.Qb6#
      • 1...d4!
    • 1.Rxf3+?
      • 1...Kxb4
        • 2.Qa5#
        • 2.Qb6#
      • 1...Kd4
        • 2.Bf6#
        • 2.Qh8#
      • 1...gxf3!
    • 1.Qa5?
      • 1...Kd4
        • 2.Bf6#
      • 1...dxc4
        • 2.Bf6#
      • 1...d4
        • 2.Qa3#
        • 2.b5#
      • 1...c5!
    • 1.Qh8+?
      • 1...Kxb4
        • 2.Sd3#
      • 1...d4!
    • 1.c5?
      • 1...Kxb4
        • 2.Qa5#
      • 1...Kd4
        • 2.Bf6#
        • 2.Qh8#
      • 1...d4!
  • Keys
    • 1.Kxc6!
      • 1...dxc4+
        • 2.Se4#
      • 1...d4+
        • 2.Sd5#
      • 1...Kxb4
        • 2.Qa5#
      • 1...Kd4
        • 2.Bf6#
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINB(b),OGATEB,S_FLIGHT,XP(F)::QAB1(L)
    • P(d);N_GUARD,SBLOCK,XP(G)::S(I)
  • Tries
    • Try
      • S(H);CHECK,XP(d)
      • Refutation
        • P(e);XS(H)
    • Try
      • B(K);CHECK
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • R(E);CHECK,XB(b)
      • Refutation
        • P(c);XR(E)
    • Try
      • Q(L);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::B(K)
        • P(d);N_GUARD,XP(G)::B(K)
      • Refutation
        • P(e);
    • Try
      • Q(L);CHECK
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT,XP(F)::S(H)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • P(G);
      • Vars
        • K(a);N_SPINB(b),OGATEB,S_FLIGHT,XP(F)::QAB1(L)
      • Refutation
        • P(d);
  • Actual
    • K(J);S_FLIGHT,XP(e)
    • Vars
      • P(d);CHECK,N_GUARD,SBLOCK,XP(G)::S(I)
      • P(d);CHECK,SBLOCK::S(H)
      • K(a);N_SPINB(b),OGATEB,S_FLIGHT,XP(F)::QAB1(L)
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