MESON Chess Problem Database

Problem Display
PID: 259734 (1B6/3R4/4N1K1/R4p2/3nk3/1N2b2P/5p2/5B2 w - - 0 1)

Hollenstein, Ernst

Schweizerische Schachzeitung, 1971

1B6/3R4/4N1K1/R4p2/3nk3/1N2b2P/5p2/5B2

#2

8 + 5

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Bg2#
    • 1...Se2
      • 2.Bg2#
    • 1...Sxb3
      • 2.Bg2#
    • 1...Sf3
      • 2.Bd3#
    • 1...Sb5
      • 2.Bg2#
    • 1...Sc6
      • 2.Bg2#
    • 1...Sxe6
      • 2.Bg2#
    • 1...f4
      • 2.Sg5#
  • Tries
    • 1.Bg2+?
      • 1...Sf3
        • 2.Re5#
      • 1...Kd3!
  • Keys
    • 1.Ra3!
      • 1...Kf3
        • 2.Sd2#
      • 1...Sxb3
        • 2.Bg2#
      • 1...Sxe6
        • 2.Bg2#
      • 1...Bc1
        • 2.Sbc5#
      • 1...Bd2
        • 2.Sxd2#
        • 2.Sbc5#
      • 1...Bf4
        • 2.Sbc5#
      • 1...Bg5
        • 2.Sbc5#
      • 1...Bh6
        • 2.Sbc5#
      • 1...Sc2
        • 2.Bg2#
      • 1...Se2
        • 2.Bg2#
      • 1...Sf3
        • 2.Bd3#
      • 1...Sb5
        • 2.Bg2#
      • 1...Sc6
        • 2.Bg2#
      • 1...f4
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::B(A)
    • S(c);N_GUARD,XS(B)::B(A)
    • S(c);SBLOCK::B(A)
    • S(c);N_GUARD,XS(E)::B(A)
    • P(e);S_CUTB(b)::S(E)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • S(c);P_SPINS(c)::R1(D)
      • Refutation
        • K(d);P_SPINS(c),S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(d);S_CUTB(b),S_FLIGHT::S(B)
      • S(c);N_GUARD,XS(B)::B(A)
      • S(c);N_GUARD,XS(E)::B(A)
      • B(b);::S(B)
      • S(c);N_GUARD::B(A)
      • S(c);SBLOCK::B(A)
      • P(e);S_CUTB(b)::S(E)
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).