MESON Chess Problem Database

Problem Display
PID: 173057 (1n2R2B/2NpPRN1/pPpkP3/P3pP2/2K5/8/8/8 w - - 0 1)

Barulin, Mikhail Mikhailovich

HM., Die Schwalbe, 1934

1n2R2B/2NpPRN1/pPpkP3/P3pP2/2K5/8/8/8

#2

11 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rxb8?
      • threat
        • 2.Sce8#
        • 2.Sge8#
        • 2.e8S#
      • 1...dxe6
        • 2.Rd8#
        • 2.e8S#
      • 1...e4
        • 2.Sge8#
      • 1...c5!
    • 1.Rd8?
      • threat
        • 2.Sce8#
        • 2.Sge8#
        • 2.e8S#
      • 1...e4
        • 2.Sge8#
      • 1...c5!
    • 1.Ref8?
      • threat
        • 2.Sce8#
        • 2.Sge8#
        • 2.e8S#
      • 1...dxe6
        • 2.e8S#
      • 1...e4
        • 2.Sge8#
      • 1...c5!
    • 1.Rg8?
      • threat
        • 2.Sce8#
        • 2.Sge8#
        • 2.e8S#
      • 1...dxe6
        • 2.e8S#
      • 1...e4
        • 2.Sge8#
      • 1...c5!
  • Keys
    • 1.Rc8!
      • threat
        • 2.Sce8#
        • 2.Sge8#
        • 2.e8S#
      • 1...dxe6
        • 2.e8S#
      • 1...e4
        • 2.Sge8#
      • 1...c5
        • 2.Sce8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(J);XS(f)
      • Threat
        • DUALS(3)
      • Vars
        • P(a);::S(I)
      • Refutation
        • P(c);
    • Try
      • R(J);P_PINP(e)
      • Threat
        • DUALS(3)
      • Vars
        • P(a);::S(I)
      • Refutation
        • P(c);
    • Try
      • R(J);
      • Threat
        • DUALS(3)
      • Vars
        • P(e);XP(E)::P=S
        • P(a);::S(I)
      • Refutation
        • P(c);
    • Try
      • R(J);
      • Threat
        • DUALS(3)
      • Vars
        • P(e);XP(E)::P=S
        • P(a);::S(I)
      • Refutation
        • P(c);
  • Actual
    • R(J);
    • Threat
      • DUALS(3)
    • Vars
      • P(e);XP(E)::P=S
      • P(a);::S(I)
      • P(c);::S(F)
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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).