MESON Chess Problem Database

Problem Display
PID: 152249 (2Q3B1/8/1N4n1/4p2R/K2k4/4n3/2P5/4R3 w - - 0 1)

Winter-Wood, Edward John

Pen & Pencil, 1888

(First published on Sat Aug 18 1888)

2Q3B1/8/1N4n1/4p2R/K2k4/4n3/2P5/4R3

#2

7 + 4

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qc4#
    • 1...Sf1
      • 2.Qc4#
    • 1...Sxc2
      • 2.Qc4#
    • 1...Sg2
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sg4
      • 2.Qc4#
    • 1...Sd5
      • 2.Qc4#
    • 1...Sf5
      • 2.Qc4#
    • 1...e4
      • 2.Qc5#
  • Tries
    • 1.Qc3+?
      • 1...Ke4
        • 2.Qxe3#
      • 1...Kxc3!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Qxe3#
      • 1...Kxc5!
    • 1.Qc7?
      • 1...Sxc2
        • 2.Qc4#
      • 1...Sf4
        • 2.Qxe5#
      • 1...Sd1
        • 2.Qc4#
      • 1...Sf1
        • 2.Qc4#
      • 1...Sg2
        • 2.Qc4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sg4
        • 2.Qc4#
      • 1...Sd5
        • 2.Qc4#
      • 1...Sf5
        • 2.Qc4#
      • 1...Sh4
        • 2.Qxe5#
      • 1...Se7
        • 2.Qxe5#
      • 1...Sf8
        • 2.Qxe5#
      • 1...Sh8
        • 2.Qxe5#
      • 1...e4
        • 2.Qc5#
      • 1...Ke4!
    • 1.c3+?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kd3!
  • Keys
    • 1.Bh7!
      • 1...Ke4
        • 2.Qg4#
      • 1...Sxc2
        • 2.Qc4#
      • 1...Sf4
        • 2.c3#
      • 1...Sd1
        • 2.Qc4#
      • 1...Sf1
        • 2.Qc4#
      • 1...Sg2
        • 2.Qc4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sg4
        • 2.Qc4#
      • 1...Sd5
        • 2.Qc4#
      • 1...Sf5
        • 2.Qc4#
      • 1...Sh4
        • 2.c3#
      • 1...Se7
        • 2.c3#
      • 1...Sf8
        • 2.c3#
      • 1...Sh8
        • 2.c3#
      • 1...e4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(F)
    • S(a);N_GUARD,XP(B)::QAR1(F)
    • S(a);N_GUARD::QAR1(F),XS(a)
    • P(c);SBLOCK::QAB1(F)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINS(a)::QAR1(F),XS(a)
      • Refutation
        • K(b);S_FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT,P_SPINS(a)::QAR1(F),XS(a)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT,XQ(F)
    • Try
      • Q(F);
      • Vars
        • S(a);N_GUARD,XP(B)::QAR1(F)
        • S(d);N_GUARD::QAB1(F),XP(c)
        • S(a);N_GUARD::QAR1(F)
        • S(a);N_GUARD::QAR1(F),XS(a)
        • P(c);SBLOCK::QAB1(F)
      • Refutation
        • K(b);P-FLIGHT,P_SPINS(a)
    • Try
      • P(B);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINS(a)::QAB1(F)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(G);
    • Vars
      • K(b);P-FLIGHT,P_SPINS(a)::QAR2(F)
      • S(a);N_GUARD,XP(B)::QAR1(F)
      • S(d);::P(B)
      • S(a);N_GUARD::QAR1(F)
      • S(a);N_GUARD::QAR1(F),XS(a)
      • P(c);SBLOCK::QAB1(F)
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