MESON Chess Problem Database

Problem Display
PID: 142669 (7B/2Np2n1/3P1kq1/3Q1P2/5R1P/6N1/6B1/1b5K w - - 0 1)

Winter-Wood, Edward John

Boys' Own Paper, 1902

7B/2Np2n1/3P1kq1/3Q1P2/5R1P/6N1/6B1/1b5K

#2

10 + 5

15254 EJWW Scrapbook 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Qh5
      • 2.Sxh5#
    • 1...Qf7
      • 2.Qd4#
    • 1...Qh7
      • 2.Se8#
    • 1...Qe8
      • 2.Sxe8#
    • 1...Qxg3
      • 2.Se8#
    • 1...Qg4
      • 2.Se8#
    • 1...Qg5
      • 2.Se8#
    • 1...Qh6
      • 2.Se8#
    • 1...Ba2
      • 2.Se4#
    • 1...Be4
      • 2.Sxe4#
    • 1...Bxf5
      • 2.Se4#
  • Tries
    • 1.Bxg7+?
      • 1...Qxg7
        • 2.Sh5#
        • 2.Se8#
      • 1...Kxg7!
    • 1.Rg4?
      • threat
        • 2.Rxg6#
      • 1...Qxf5
        • 2.Se8#
        • 2.Bxg7#
      • 1...Qxg4
        • 2.Se8#
      • 1...Qh5
        • 2.Sxh5#
        • 2.Bxg7#
      • 1...Qf7
        • 2.Qd4#
      • 1...Qh7
        • 2.Se8#
      • 1...Qe8
        • 2.Sxe8#
        • 2.Bxg7#
      • 1...Qg5
        • 2.Se8#
        • 2.hxg5#
      • 1...Qh6
        • 2.Se8#
      • 1...Bxf5!
    • 1.fxg6+?
      • 1...Bf5
        • 2.Qxf5#
      • 1...Kxg6!
  • Keys
    • 1.Be4!
      • threat
        • 2.fxg6#
      • 1...Bxe4+
        • 2.Sxe4#
      • 1...Qxf5
        • 2.Qxf5#
      • 1...Qxg3
        • 2.Se8#
      • 1...Qh5
        • 2.Sxh5#
      • 1...Qf7
        • 2.Qd4#
      • 1...Qh7
        • 2.Se8#
      • 1...Qe8
        • 2.Sxe8#
      • 1...Qg4
        • 2.Se8#
      • 1...Qg5
        • 2.Se8#
      • 1...Qh6
        • 2.Se8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(c);N_GUARD,P_PINP(E)::S(C),XQ(c)
    • Q(c);SBLOCK::QAB(F)
    • Q(c);N_GUARD,P_PINP(E)::S(I)
    • Q(c);N_GUARD::S(I),XQ(c)
    • Q(c);N_GUARD,XS(C)::S(I)
    • Q(c);N_GUARD::S(I)
    • B(a);N_GUARD::S(C)
    • B(a);N_GUARD,P_PINB(B)::S(C),XB(a)
    • B(a);N_GUARD,P_SPINB(a),XP(G)::S(C)
  • Tries
    • Try
      • B(J);CHECK,XS(e)
      • Refutation
        • K(b);S_FLIGHT,XB(J)
    • Try
      • R(D);
      • Threat
        • R1(D),XQ(c)
      • Vars
        • Q(c);N_GUARD,XR(D)::S(I)
        • Q(c);SBLOCK::QAB(F)
        • Q(c);N_GUARD,P_PINP(E)::S(I)
      • Refutation
        • B(a);XP(G)
    • Try
      • P(G);CHECK,XQ(c)
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR1(F),XB(a)
      • Refutation
        • K(b);N_SPINS(e),P-FLIGHT,XP(G)
  • Actual
    • B(B);
    • Threat
      • R(D)+P(G),XQ(c)
    • Vars
      • B(a);CHECK,XB(B)::S(C),XB(a)
      • Q(c);OGATE,P_SPINQ(c),XP(G)::QAR1(F),XQ(c)
      • Q(c);N_GUARD,XS(C)::S(I)
      • Q(c);N_GUARD,P_PINP(E)::S(C),XQ(c)
      • Q(c);SBLOCK::QAB(F)
      • Q(c);N_GUARD,P_PINP(E)::S(I)
      • Q(c);N_GUARD::S(I),XQ(c)
      • Q(c);N_GUARD::S(I)
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