MESON Chess Problem Database

Problem Display
PID: 181216 (8/B2p1K2/Q2P4/2r1k3/4B3/1n1P2P1/5P2/8 w - - 0 1)

Preiswerk, Walther Edouard

Basler Nachrichten, 0000

8/B2p1K2/Q2P4/2r1k3/4B3/1n1P2P1/5P2/8

#2

8 + 4

16108 Walther Preiswerks Shachprobleme (M. Henneberger) 1949
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.f4#
    • 1...Rc2
      • 2.f4#
    • 1...Rc3
      • 2.f4#
    • 1...Rc4
      • 2.f4#
    • 1...Ra5
      • 2.f4#
    • 1...Rb5
      • 2.f4#
    • 1...Rd5
      • 2.f4#
    • 1...Rc7
      • 2.f4#
    • 1...Rc8
      • 2.f4#
    • 1...Sd4
      • 2.f4#
  • Keys
    • 1.Qa3!
      • 1...Kd4
        • 2.Qb2#
      • 1...Kxd6
        • 2.Bb8#
      • 1...Rc1
        • 2.f4#
      • 1...Rc2
        • 2.f4#
      • 1...Rc3
        • 2.f4#
      • 1...Rc4
        • 2.f4#
      • 1...Ra5
        • 2.f4#
      • 1...Rb5
        • 2.f4#
      • 1...Rd5
        • 2.f4#
      • 1...Rc6
        • 2.f4#
      • 1...Rc7
        • 2.f4#
      • 1...Rc8
        • 2.f4#
      • 1...Sa1
        • 2.Qxc5#
      • 1...Sc1
        • 2.Qxc5#
      • 1...Sd2
        • 2.Qxc5#
      • 1...Sd4
        • 2.Qxc5#
      • 1...Sa5
        • 2.Qxc5#

Anticipated by 10978(1887), 5023(1897), 94521(1897), 156495(1907)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(b);::P(A)
    • S(a);SBLOCK::P(A)
  • Actual
    • Q(E);
    • Vars
      • K(c);P_SPINR(b),S_FLIGHT::QAB(E)
      • K(c);OGATEB,P_SPINR(b),S_FLIGHT,XP(F)::B(G)
      • R(b);::P(A)
      • S(a);N_GUARD::QAR2(E),XR(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).