MESON Chess Problem Database

Problem Display
PID: 207232 (2R5/1p2K2p/4pN2/1r2k2r/3p2P1/6P1/1B6/8 w - - 0 1)

Schaferling, Cenek

Svetozor, 1869

2R5/1p2K2p/4pN2/1r2k2r/3p2P1/6P1/1B6/8

#2

6 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb2
      • 2.Rc5#
    • 1...Rb3
      • 2.Rc5#
    • 1...Rb4
      • 2.Rc5#
    • 1...Rc5
      • 2.Rxc5#
    • 1...Rb6
      • 2.Rc5#
  • Tries
    • 1.Rc2?
      • threat
        • 2.Re2#
      • 1...Rxb2
        • 2.Rc5#
      • 1...Rb3
        • 2.Rc5#
      • 1...Rh2!
    • 1.Rc4?
      • threat
        • 2.Bxd4#
      • 1...Rxb2
        • 2.Rc5#
      • 1...Rd5!
    • 1.Rc6?
      • threat
        • 2.Rxe6#
      • 1...Rb6
        • 2.Rc5#
      • 1...bxc6!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Re3#
      • 1...Rxb2
        • 2.Rc5#
      • 1...dxc3
        • 2.Bxc3#
      • 1...d3
        • 2.Rb3#
        • 2.Rc5#
      • 1...Rb3
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD,N_SPINP(a),XB(A)::R(F)
    • R(b);N_GUARD::R(F)
    • R(b);N_GUARD::R(F),XR(b)
  • Tries
    • Try
      • R(F);
      • Threat
        • R(F)
      • Vars
        • R(b);N_GUARD,N_SPINP(a),XB(A)::R(F)
        • R(b);N_GUARD::R(F)
      • Refutation
        • R(d);
    • Try
      • R(F);
      • Threat
        • B(A),XP(a)
      • Vars
        • R(b);N_GUARD,N_SPINP(a),XB(A)::R(F)
      • Refutation
        • R(b);
    • Try
      • R(F);
      • Threat
        • R1(F),XP(e)
      • Vars
        • R(b);N_GUARD::R(F)
      • Refutation
        • P(f);XR(F)
  • Actual
    • R(F);N_PINP(a)
    • Threat
      • R(F)
    • Vars
      • R(b);N_GUARD,XB(A)::R(F)
      • P(a);OGATE,P_SPINP(a),XR(F)::B(A),XP(a)
      • R(b);N_GUARD::R(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).