MESON Chess Problem Database

Problem Display
PID: 194984 (8/N2Q4/kr6/1R6/p2P4/pn5B/n6K/8 w - - 0 1)

Scheuermann, P

Deutsche Schachblatter, 1918

8/N2Q4/kr6/1R6/p2P4/pn5B/n6K/8

#2

6 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Qb7#
    • 1...Rd6
      • 2.Qb7#
    • 1...Re6
      • 2.Qb7#
    • 1...Rf6
      • 2.Qb7#
    • 1...Rg6
      • 2.Qb7#
    • 1...Rh6
      • 2.Qb7#
    • 1...Rb7
      • 2.Qxb7#
  • Tries
    • 1.Rxb6+?
      • 1...Ka5
        • 2.Qb5#
      • 1...Kxb6!
    • 1.Qc8+?
      • 1...Rb7
        • 2.Qxb7#
      • 1...Kxa7!
  • Keys
    • 1.Sc6!
      • 1...Kxb5
        • 2.Bf1#
      • 1...Rxb5
        • 2.Qa7#
      • 1...Rxc6
        • 2.Qb7#
      • 1...Sxd4
        • 2.Ra5#
      • 1...Rb7
        • 2.Qxb7#
      • 1...Rb8
        • 2.Sxb8#
      • 1...Sac1
        • 2.Sb4#
      • 1...Sc3
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#
      • 1...Sa1
        • 2.Ra5#
      • 1...Sbc1
        • 2.Ra5#
      • 1...Sd2
        • 2.Ra5#
      • 1...Sa5
        • 2.Rxa5#
      • 1...Sc5
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 5
  • Sets
    • R(f);N_GUARD::QAB1(F)
    • R(f);N_GUARD,P_PINB(B),SBLOCK::QAB1(F)
    • R(f);N_GUARD::QAB1(F),XR(f)
  • Tries
    • Try
      • R(D);CHECK,XR(f)
      • Vars
        • K(e);P-FLIGHT::QAR1(F)
      • Refutation
        • K(e);P-FLIGHT,XR(D)
    • Try
      • Q(F);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::QAB1(F),XR(f)
      • Refutation
        • K(e);P-FLIGHT,XS(E)
  • Actual
    • S(E);
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(D)::B(B)
      • R(f);SBLOCK,XR(D)::QAR1(F)
      • R(f);N_GUARD,XS(E)::QAB1(F)
      • S(c);N_GUARD,XP(C)::R1(D)
      • R(f);N_GUARD::QAB1(F),XR(f)
      • R(f);N_GUARD::S(E),XR(f)
      • S(a);N_GUARD::S(E)
      • S(a);N_GUARD::S(E),XS(a)
      • S(c);N_GUARD::R1(D)
      • S(c);N_GUARD::R1(D),XS(c)
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).