MESON Chess Problem Database

Problem Display
PID: 183116 (6kr/2p4N/4PPB1/5r2/8/P1p3R1/K1Q4P/4b3 w - - 0 1)

von Wardener, Friedrich Freiherr

Norwich Mercury, 1907

6kr/2p4N/4PPB1/5r2/8/P1p3R1/K1Q4P/4b3

#2

9 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Bf7#
    • 1...Rf2
      • 2.Bd3#
      • 2.Be4#
      • 2.Bf5#
      • 2.Bh5#
      • 2.Bf7#
      • 2.Be8#
    • 1...Rf3
      • 2.Bf7#
    • 1...Rf4
      • 2.Bf7#
    • 1...Ra5
      • 2.Bf7#
    • 1...Rb5
      • 2.Bf7#
    • 1...Rc5
      • 2.Bf7#
    • 1...Rd5
      • 2.Bf7#
    • 1...Re5
      • 2.Bf7#
    • 1...Rg5
      • 2.Bf7#
    • 1...Rh5
      • 2.Bf7#
    • 1...Rxf6
      • 2.Bf7#
  • Tries
    • 1.Qd3?
      • threat
        • 2.Qd8#
      • 1...Rxf6
        • 2.Bf7#
      • 1...Rd5
        • 2.Bf7#
      • 1...Rf2+!
    • 1.f7+?
      • 1...Rxf7
        • 2.Bxf7#
      • 1...Kg7!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qb8#
      • 1...Rf2+
        • 2.Bc2#
      • 1...Rxf6
        • 2.Bf7#
      • 1...Rb5
        • 2.Bf7#
      • 1...Rd5
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(c);::R(E)+B(H),DCHECK
    • R(c);P_PINP(D)::R(E)+B(H),DCHECK
    • R(c);::B(H)
    • R(c);XP(G)::R(E)+B(H),DCHECK
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • R(c);XP(G)::R(E)+B(H),DCHECK
        • R(c);::R(E)+B(H),DCHECK
      • Refutation
        • R(c);CHECK
    • Try
      • P(G);CHECK
      • Vars
        • R(c);OGATE,XP(G)::R(E)+B(H),DCHECK,XR(c)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAR(B)
    • Vars
      • R(c);CHECK,OGATE::R(E)+B(H)
      • R(c);XP(G)::R(E)+B(H),DCHECK
      • R(c);::R(E)+B(H),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).