MESON Chess Problem Database

Problem Display
PID: 215134 (2B4b/8/2p1p3/1p1b2Rp/PPk5/P2NP3/2K5/8 w - - 0 1)

Anonymous

SEPA, 1942

2B4b/8/2p1p3/1p1b2Rp/PPk5/P2NP3/2K5/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Rc5#
    • 1...Bg2
      • 2.Rc5#
    • 1...Bf3
      • 2.Rc5#
    • 1...Be4
      • 2.Rc5#
    • 1...Bb2
      • 2.Sxb2#
    • 1...Be5
      • 2.Sxe5#
    • 1...bxa4
      • 2.Ba6#
    • 1...e5
      • 2.Sb2#
  • Tries
    • 1.Rg4+?
      • 1...Be4
        • 2.Bxe6#
      • 1...Bd4
        • 2.Sb2#
        • 2.Se5#
        • 2.Rxd4#
      • 1...hxg4!
  • Keys
    • 1.Re5!
      • threat
        • 2.Sb2#
      • 1...Bxe5
        • 2.Sxe5#
      • 1...bxa4
        • 2.Ba6#
      • 1...Be4
        • 2.Rc5#

This is a version

Version by Udo Degener, Albrecht Collection.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • B(c);OGATE::R1(G)
    • B(c);OGATE,P_PINS(C)::R1(G)
    • B(g);N_GUARD::S(C),XB(g)
    • P(b);OGATEB,XP(E)::B(H)
    • P(f);S_CUTB(g)::S(C)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • B(c);P_PINS(C),P_SPINB(c),S_CUTB(g),S_CUTP(d)::B(H),XP(f)
      • Refutation
        • P(d);XR(G)
  • Actual
    • R(G);
    • Threat
      • S(C)
    • Vars
      • B(g);XR(G)::S(C),XB(g)
      • P(b);OGATEB,XP(E)::B(H)
      • B(c);OGATE,P_PINS(C)::R1(G)
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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).