MESON Chess Problem Database

Problem Display
PID: 152520 (2N2r1r/6p1/5kpb/2pR2N1/K1n4P/B3p2B/3nP3/1R6 w - - 0 1)

Williams, Philip Hamilton

Hampstead and Highgate Express, 1898

(First published on Sat Dec 24 1898)

2N2r1r/6p1/5kpb/2pR2N1/K1n4P/B3p2B/3nP3/1R6

#2

9 + 10

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Rxf1#
    • 1...Sb3
      • 2.Rf1#
    • 1...Sb2+
      • 2.Bxb2#
    • 1...Sxa3
      • 2.Rb6#
    • 1...Sa5
      • 2.Bb2#
    • 1...Se5
      • 2.Rd6#
    • 1...Sb6+
      • 2.Rxb6#
    • 1...Sd6
      • 2.Bb2#
  • Tries
    • 1.Bb2+?
      • 1...Se5
        • 2.Bxe5#
        • 2.Rd6#
      • 1...Sxb2+!
    • 1.Rf1+?
      • 1...Sf3
        • 2.Rxf3#
      • 1...Sxf1!
    • 1.Rb6+?
      • 1...Sd6
        • 2.Bb2#
        • 2.Rbxd6#
      • 1...Sxb6+!
    • 1.Rd6+?
      • 1...Sxd6
        • 2.Bb2#
      • 1...Ke5!
  • Keys
    • 1.Rb7!
      • 1...Sb2+
        • 2.Bxb2#
      • 1...Sb6+
        • 2.Rxb6#
      • 1...Rxc8
        • 2.Rf7#
      • 1...Bxg5
        • 2.hxg5#
      • 1...Sxa3
        • 2.Rb6#
      • 1...Rf7
        • 2.Rxf7#
      • 1...Rd8
        • 2.Rf7#
      • 1...Re8
        • 2.Rf7#
      • 1...Rfg8
        • 2.Rf7#
      • 1...Rh7
        • 2.Sxh7#
      • 1...Rhg8
        • 2.Sh7#
      • 1...Sb1
        • 2.Se4#
      • 1...Sf1
        • 2.Se4#
      • 1...Sb3
        • 2.Se4#
      • 1...Sf3
        • 2.Se4#
      • 1...Se4
        • 2.Sxe4#
      • 1...Sa5
        • 2.Bb2#
      • 1...Se5
        • 2.Rd6#
      • 1...Sd6
        • 2.Bb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::R(A),XS(a)
    • S(a);N_GUARD::R(A)
    • S(c);CHECK,N_GUARD::B(C),XS(c)
    • S(c);N_GUARD,XB(C)::R(A)
    • S(c);N_GUARD::B(C)
    • S(c);N_GUARD,SBLOCK::R(G)
    • S(c);CHECK,N_GUARD::R(A),XS(c)
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • S(c);CHECK,XB(C)
    • Try
      • R(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R(A),XS(a)
      • Refutation
        • S(a);XR(A)
    • Try
      • R(A);CHECK
      • Refutation
        • S(c);CHECK,XR(A)
    • Try
      • R(G);CHECK
      • Vars
        • S(c);XR(G)::B(C)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • S(c);CHECK,N_GUARD::B(C),XS(c)
      • S(c);CHECK,N_GUARD::R(A),XS(c)
      • R(i);N_GUARD,XS(I)::R1(A)
      • B(g);OGATE,XS(H)::P(F),XB(g)
      • S(c);N_GUARD,XB(C)::R(A)
      • R(i);N_GUARD::R1(A),XR(i)
      • R(i);N_GUARD::R1(A)
      • R(j);N_GUARD::S(H),XR(j)
      • R(j);N_GUARD::S(H)
      • S(a);N_GUARD::S(H)
      • S(a);N_GUARD::S(H),XS(a)
      • S(c);N_GUARD::B(C)
      • S(c);N_GUARD,SBLOCK::R(G)
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