MESON Chess Problem Database

Problem Display
PID: 143295 (2B5/B1p5/p1R5/RbnkNN2/p7/p2n4/P2P3K/1Q6 w - - 0 1)

Jackson, Harry S

Prize, Boys' Newspaper, 0000

2B5/B1p5/p1R5/RbnkNN2/p7/p2n4/P2P3K/1Q6

#2

10 + 8

158 Brentano's Chess Monthly 1881
1253 Leeds Mercury Weekly Supplement 1881
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Rxc5#
    • 1...Se1
      • 2.Rxc5#
    • 1...Sb2
      • 2.Rxc5#
    • 1...Sf2
      • 2.Rxc5#
    • 1...Sb4
      • 2.Rxc5#
    • 1...Sf4
      • 2.Rxc5#
    • 1...Sxe5
      • 2.Rxc5#
  • Tries
    • 1.Sf7?
      • 1...Kc4
        • 2.Be6#
      • 1...Kxc6
        • 2.Se7#
      • 1...Bxc6
        • 2.Qxd3#
      • 1...Bc4
        • 2.Qh1#
      • 1...Sc1
        • 2.Rxc5#
      • 1...Se1
        • 2.Rxc5#
      • 1...Sb2
        • 2.Rxc5#
      • 1...Sf2
        • 2.Rxc5#
      • 1...Sb4
        • 2.Rxc5#
      • 1...Sf4
        • 2.Rxc5#
      • 1...Se5
        • 2.Rxc5#
      • 1...Sb3
        • 2.Qh1#
      • 1...Se4
        • 2.Se7#
      • 1...Se6
        • 2.Qh1#
      • 1...Sb7
        • 2.Qh1#
      • 1...Sd7
        • 2.Qh1#
      • 1...Ke4!
  • Keys
    • 1.Sg6!
      • 1...Kc4
        • 2.Be6#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kxc6
        • 2.Sge7#
      • 1...Bxc6
        • 2.Qxd3#
      • 1...Bc4
        • 2.Qh1#
      • 1...Sc1
        • 2.Rxc5#
      • 1...Se1
        • 2.Rxc5#
      • 1...Sb2
        • 2.Rxc5#
      • 1...Sf2
        • 2.Rxc5#
      • 1...Sb4
        • 2.Rxc5#
      • 1...Sf4
        • 2.Rxc5#
      • 1...Se5
        • 2.Rxc5#
      • 1...Sb3
        • 2.Qh1#
      • 1...Se4
        • 2.Sfe7#
      • 1...Se6
        • 2.Qh1#
      • 1...Sb7
        • 2.Qh1#
      • 1...Sd7
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::R1(H),XS(e)
    • S(b);N_GUARD,SBLOCK,XS(F)::R1(H),XS(e)
  • Tries
    • Try
      • S(F);
      • Vars
        • K(f);P_SPINS(e),S_FLIGHT::B(J)
        • K(f);S_FLIGHT,XR(H)::S(G)
        • B(d);N_GUARD,P_SPINS(e),SBLOCK,XR(H)::QAR2(A),XS(b)
        • B(d);P_SPINS(e),SBLOCK::QAB(A)
        • S(b);N_GUARD::R1(H),XS(e)
        • S(e);N_GUARD,P_SPINB(d)::QAB(A)
        • S(e);P_SPINB(d),SBLOCK::S(G)
      • Refutation
        • K(f);P_SPINS(b),S_FLIGHT
  • Actual
    • S(F);
    • Vars
      • K(f);P_SPINS(e),S_FLIGHT::B(J)
      • K(f);P_SPINS(b),S_FLIGHT::QAB(A)
      • K(f);S_FLIGHT,XR(H)::S(F)
      • B(d);N_GUARD,P_SPINS(e),SBLOCK,XR(H)::QAR2(A),XS(b)
      • B(d);P_SPINS(e),SBLOCK::QAB(A)
      • S(b);N_GUARD::R1(H),XS(e)
      • S(e);N_GUARD,P_SPINB(d)::QAB(A)
      • S(e);P_SPINB(d),SBLOCK::S(G)
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