MESON Chess Problem Database

Problem Display
PID: 156813 (KR1B4/1np5/B1k1Pp2/p4N2/rb4p1/pR1N2Pp/P2Q3P/8 w - - 0 1)

Luckcock, SG

British Chess Magazine, 1905

KR1B4/1np5/B1k1Pp2/p4N2/rb4p1/pR1N2Pp/P2Q3P/8

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd2
      • 2.Bxb7#
    • 1...Bc3
      • 2.Bxb7#
    • 1...Bc5
      • 2.Bxb7#
    • 1...Bd6
      • 2.Bxb7#
    • 1...Be7
      • 2.Bxb7#
    • 1...Bf8
      • 2.Bxb7#
    • 1...Sd6
      • 2.Se7#
  • Tries
    • 1.Se5+?
      • 1...Kc5
        • 2.Qd4#
      • 1...Kb6
        • 2.Qd6#
      • 1...fxe5!
    • 1.Qg2+?
      • 1...Kb6
        • 2.Qxb7#
      • 1...hxg2!
  • Keys
    • 1.Qf4!
      • 1...Kd5
        • 2.Qc4#
      • 1...Kb6
        • 2.Qd6#
      • 1...Sxd8
        • 2.Qe4#
      • 1...Sc5
        • 2.Se7#
      • 1...Be1
        • 2.Se7#
        • 2.Bxb7#
      • 1...Bd2
        • 2.Se7#
        • 2.Bxb7#
      • 1...Bc3
        • 2.Se7#
        • 2.Bxb7#
      • 1...Bc5
        • 2.Bxb7#
      • 1...Bd6
        • 2.Bxb7#
      • 1...Be7
        • 2.Sxe7#
        • 2.Bxb7#
      • 1...Bf8
        • 2.Bxb7#
      • 1...Sd6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(d);XQ(B)::B(H),XS(i)
    • B(d);::B(H),XS(i)
    • S(i);SBLOCK,S_CUTB(d)::S(G)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(g);P-FLIGHT::QAB1(B)
        • K(g);P-FLIGHT,P_SPINB(d),P_SPINP(j),P_SPINS(i)::QAR2(B)
      • Refutation
        • P(h);XS(E)
    • Try
      • Q(B);CHECK
      • Vars
        • K(g);OGATE,P-FLIGHT,P_SPINB(d),P_SPINP(j),P_SPINS(i)::QAR1(B),XS(i)
      • Refutation
        • P(b);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(g);S_FLIGHT::QAB1(B)
      • K(g);P-FLIGHT,P_SPINB(d),P_SPINP(j),P_SPINS(i)::QAR2(B)
      • S(i);XB(L)::QAB(B)
      • S(i);S_CUTB(d)::S(G)
      • B(d);::B(H),XS(i)
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