MESON Chess Problem Database

Problem Display
PID: 192876 (1R1n4/k1p3rR/N7/pP3p2/P1N5/8/3p1K2/3b2B1 w - - 0 1)

Coello Alonso, Jose Antonio

Uris, Miguel

BCPS Website, 2019

1R1n4/k1p3rR/N7/pP3p2/P1N5/8/3p1K2/3b2B1

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2+
      • 2.Kxg2#
    • 1...Rg3
      • 2.Kxg3#
  • Tries
    • 1.Kf1+?
      • 1...c5
        • 2.Bxc5#
      • 1...Rxg1+!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sc8#
      • 1...Rg2+
        • 2.Kxg2#
      • 1...cxd6
        • 2.Kf1#

This is a version of 192875

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(g);CHECK,P_SPINP(f)::B(A)+K(B),XR(g)
    • R(g);P_SPINP(f)::B(A)+K(B),XR(g)
  • Tries
    • Try
      • K(B);CHECK,P-FLIGHT
      • Vars
        • P(f);P_SPINP(f),P_SPINR(g)::B(A),XP(f)
      • Refutation
        • R(g);CHECK,P_SPINP(f),XB(A)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • R(g);CHECK,P_SPINP(f)::B(A)+K(B),XR(g)
      • P(f);N_GUARD,P_SPINR(g),XS(D)::B(A)+K(B)
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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).