MESON Chess Problem Database

Problem Display
PID: 181113 (5b2/q4RN1/p3RPp1/6k1/1p6/1K2p3/2p4N/2BbQ3 w - - 0 1)

Ruppert, Friedrich

1st Prize, Aftonbladet, 1904

5b2/q4RN1/p3RPp1/6k1/1p6/1K2p3/2p4N/2BbQ3

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qb7
      • 2.Bxe3#
    • 1...Qd7
      • 2.Bxe3#
    • 1...Qe7
      • 2.Bxe3#
    • 1...Qxf7
      • 2.Bxe3#
    • 1...Qa8
      • 2.Bxe3#
  • Keys
    • 1.Rxe3!
      • threat
        • 2.Re5#
      • 1...Qxe3+
        • 2.Bxe3#
      • 1...Qxf7+
        • 2.Re6#
      • 1...Kf4
        • 2.Rf3#
        • 2.Re4#
        • 2.Qg3#
      • 1...Kh6
        • 2.Rh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(h);N_GUARD::B(A),XP(c)
    • Q(h);N_GUARD,P_PINR(E),XR(G)::B(A),XP(c)
  • Actual
    • R(E);XP(c)
    • Threat
      • B(A)+R(E),DCHECK
    • Vars
      • Q(h);CHECK,OGATE,P_SPINQ(h),XR(E)::B(A),XQ(h)
      • Q(h);CHECK,N_GUARD,XR(G)::B(A)+R(E)
      • K(e);S_FLIGHT::B(A)+R(E),DCHECK
HTML5 logo

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).