MESON Chess Problem Database

Problem Display
PID: 42487 (5r2/5Q1p/B3p2K/3pp3/Rb2k3/2P1Nn2/4n2B/1b1R1N2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

1st HM., Deutsche Schachblatter, 1983-1984

5r2/5Q1p/B3p2K/3pp3/Rb2k3/2P1Nn2/4n2B/1b1R1N2

#2

9 + 10

3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Qxh7#
    • 1...Rb8
      • 2.Qxh7#
    • 1...Rc8
      • 2.Qxh7#
    • 1...Rd8
      • 2.Qxh7#
    • 1...Re8
      • 2.Qxh7#
    • 1...Ba2
      • 2.Bd3#
    • 1...Bd3
      • 2.Bxd3#
    • 1...d4
      • 2.Bb7#
      • 2.Qb7#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Bd3#
      • 1...d4
        • 2.Bb7#
      • 1...Sc1
        • 2.Sg3#
      • 1...Sf4
        • 2.Sg3#
      • 1...Se1
        • 2.Sd2#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Bxc2!
    • 1.Sg4?
      • threat
        • 2.Sf2#
      • 1...d4
        • 2.Bb7#
      • 1...Rxf7!
    • 1.Sf5?
      • threat
        • 2.Sd6#
      • 1...exf5
        • 2.Qxd5#
      • 1...Sfd4
        • 2.Sd2#
      • 1...d4
        • 2.Bb7#
      • 1...Sed4
        • 2.S5g3#
      • 1...Rd8!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sd6#
      • 1...dxc4
        • 2.Bb7#
      • 1...d4
        • 2.Bb7#
      • 1...Rd8
        • 2.Qxh7#
      • 1...Bd6
        • 2.Scd2#
        • 2.Sxd6#
      • 1...Sed4
        • 2.Sg3#
      • 1...Sfd4
        • 2.Scd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(j);N_GUARD::QAB(I),XP(i)
    • B(a);N_GUARD::B(G)
    • B(a);N_GUARD::B(G),XB(a)
  • Tries
    • Try
      • S(E);
      • Threat
        • B(G)
      • Vars
        • P(f);N_SPINB(d),OGATEB::B(G)
        • S(b);N_GUARD::S(B)
        • S(c);N_GUARD::S(B)
        • S(c);N_GUARD::S(B),XS(c)
      • Refutation
        • B(a);XS(E)
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • P(f);N_SPINB(d),OGATEB::B(G)
      • Refutation
        • R(j);XQ(I)
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • P(h);OGATE,SBLOCK,XS(E)::QAB1(I),XP(f)
        • S(c);N_GUARD,N_SPINB(d)::S(B)
        • P(f);N_SPINB(d),OGATEB::B(G)
        • S(b);N_GUARD,N_SPINB(d)::S(E)
      • Refutation
        • R(j);
  • Actual
    • S(E);N_PINB(d)
    • Threat
      • S(E)
    • Vars
      • P(f);OGATEB,XS(E)::B(G)
      • P(f);OGATEB::B(G)
      • R(j);N_GUARD::QAB(I),XP(i)
      • S(b);N_GUARD::S(B)
      • S(c);N_GUARD::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).