MESON Chess Problem Database

Problem Display
PID: 216207 (8/8/2p1P2B/2P1P3/2Pk1N2/P6R/8/1Q4K1 w - - 0 1)

Coster, CH

Sammlung Leichterer Schachaufgaben 2 (Dufresne), 1882

8/8/2p1P2B/2P1P3/2Pk1N2/P6R/8/1Q4K1

#2

10 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qb4#
  • Tries
    • 1.Bg7?
      • 1...Kxc4
        • 2.Qb4#
      • 1...Kxc5!
    • 1.Bf8?
      • 1...Kxc4
        • 2.Qd3#
        • 2.Qb4#
      • 1...Kxe5!
    • 1.Re3?
      • 1...Kxe3
        • 2.Qd3#
      • 1...Kxc4
        • 2.Qb4#
      • 1...Kxc5!
    • 1.Rf3?
      • 1...Kxc4
        • 2.Qb4#
      • 1...Kxe5
        • 2.Bg7#
      • 1...Kxc5!
    • 1.Qe1?
      • 1...Kxc4
        • 2.Qb4#
      • 1...Kxc5!
  • Keys
    • 1.Rh4!
      • 1...Kc3
        • 2.Se2#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kxc4
        • 2.Qb4#
      • 1...Kxc5
        • 2.Sd3#
      • 1...Kxe5
        • 2.Bg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P-FLIGHT,XP(E)::QAR1(A)
  • Tries
    • Try
      • B(J);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • B(J);
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAR1(A)
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • R(D);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR1(A)
        • K(a);OGATEB,S_FLIGHT,XP(H)::B(J)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • Q(A);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
  • Actual
    • R(D);
    • Vars
      • K(a);S_FLIGHT::S(F)
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);OGATEB,P-FLIGHT,XP(E)::QAR1(A)
      • K(a);S_FLIGHT,XP(G)::S(F)
      • K(a);OGATEB,S_FLIGHT,XP(H)::B(J)
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).