MESON Chess Problem Database

Problem Display
PID: 155817 (3K4/p6B/P2pp3/1n1kpn2/N1p5/2p3P1/2N1P3/6Q1 w - - 0 1)

Slater, George James

Leeds Mercury Weekly Supplement, 1880

(First published on Thu Apr 8 1880)

3K4/p6B/P2pp3/1n1kpn2/N1p5/2p3P1/2N1P3/6Q1

#2

8 + 9

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qh1#
      • 2.Qg2#
    • 1...Kc6
      • 2.Sb4#
    • 1...Sxg3
      • 2.Sb4#
    • 1...Sd4
      • 2.Sb4#
    • 1...Sh4
      • 2.Sb4#
    • 1...Sh6
      • 2.Sb4#
    • 1...Se7
      • 2.Sb4#
    • 1...Sg7
      • 2.Sb4#
  • Tries
    • 1.Sxc3+?
      • 1...Kc6
        • 2.Sb4#
      • 1...Sxc3!
    • 1.Sb6+?
      • 1...Ke4
        • 2.Qe3#
        • 2.Qh1#
        • 2.Qg2#
      • 1...Kc6
        • 2.Sb4#
      • 1...axb6!
    • 1.Qd1+?
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc6
        • 2.Sb4#
      • 1...Sfd4
        • 2.Sb4#
      • 1...Sbd4!
    • 1.e4+?
      • 1...Kc6
        • 2.Sb4#
      • 1...Kxe4!
  • Keys
    • 1.Qb1!
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc6
        • 2.Sb4#
      • 1...Sxg3
        • 2.Qxb5#
      • 1...Sbd4
        • 2.Sb4#
      • 1...Sa3
        • 2.Qb7#
      • 1...Sc7
        • 2.Qb7#
      • 1...Se3
        • 2.Qxb5#
      • 1...Sfd4
        • 2.Sb4#
      • 1...Sh4
        • 2.Qxb5#
      • 1...Sh6
        • 2.Qxb5#
      • 1...Se7
        • 2.Qxb5#
      • 1...Sg7
        • 2.Qxb5#
      • 1...e4
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::S(B)
    • S(f);XP(D)::S(B)
    • S(f);::S(B)
  • Tries
    • Try
      • S(E);CHECK,XP(a)
      • Vars
        • K(d);S_FLIGHT::S(B)
      • Refutation
        • S(c);XS(E)
    • Try
      • S(E);CHECK
      • Vars
        • K(d);S_FLIGHT::S(B)
      • Refutation
        • P(i);XS(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);P_SPINS(f),S_FLIGHT::QAB(A)
        • K(d);S_FLIGHT::S(B)
        • S(f);P_SPINS(f)::S(B)
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • P(C);CHECK
      • Vars
        • K(d);S_FLIGHT::S(B)
      • Refutation
        • K(d);P_SPINS(f),S_FLIGHT,XP(C)
  • Actual
    • Q(A);
    • Vars
      • K(d);P_SPINS(f),S_FLIGHT::QAB(A)
      • K(d);S_FLIGHT::S(B)
      • S(f);XP(D)::QAR2(A),XS(c)
      • S(c);SBLOCK::S(B)
      • S(c);OGATE::QAB(A)
      • S(f);::QAR2(A),XS(c)
      • S(f);SBLOCK::S(B)
      • P(e);SBLOCK::QAR2(A),XS(c)
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