MESON Chess Problem Database

Problem Display
PID: 193942 (1Q4N1/2N3p1/4P3/r1p2PP1/R1pk4/3P2R1/4K3/b7 w - - 0 1)

Betts, Frederick Charles

Falkirk Herald, 1916

1Q4N1/2N3p1/4P3/r1p2PP1/R1pk4/3P2R1/4K3/b7

#2

10 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Rxc4#
    • 1...Bb2
      • 2.Qxb2#
  • Tries
    • 1.Sb5+?
      • 1...Kd5
        • 2.Se7#
        • 2.Qd6#
      • 1...Rxb5!
    • 1.Re3?
      • threat
        • 2.Rxc4#
      • 1...Kc3
        • 2.Rxc4#
      • 1...Rxa4!
    • 1.Rg4+?
      • 1...Kc3
        • 2.Raxc4#
        • 2.Rgxc4#
      • 1...Ke5!
  • Keys
    • 1.Se7!
      • 1...Kc3
        • 2.Rxc4#
      • 1...Ke5
        • 2.Sb5#
      • 1...Rxa4
        • 2.Sb5#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Ra6
        • 2.Sb5#
      • 1...Ra7
        • 2.Sb5#
      • 1...Ra8
        • 2.Sb5#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bc3
        • 2.Sc6#
      • 1...g6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(b),S_FLIGHT::R1(D),XP(b)
    • B(a);N_GUARD::QAB(I),XB(a)
  • Tries
    • Try
      • S(H);CHECK
      • Refutation
        • R(d);XS(H)
    • Try
      • R(C);
      • Threat
        • R1(D),XP(b)
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::R1(D),XP(b)
      • Refutation
        • R(d);N_SPINP(b),XR(D)
    • Try
      • R(C);CHECK
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
  • Actual
    • S(J);
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT::R1(D),XP(b)
      • K(c);N_SPINP(b),S_FLIGHT::QAB(I)+S(H)
      • R(d);N_GUARD,N_SPINP(b),XR(D)::S(H)
      • R(d);N_GUARD::S(H),XR(d)
      • R(d);N_GUARD::S(H)
      • B(a);N_GUARD::QAB(I),XB(a)
      • B(a);SBLOCK::S(J)
      • P(f);OGATEB::QAB(I)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).