MESON Chess Problem Database

Problem Display
PID: 96433 (8/8/R3Pr2/3k1N1R/B2Pn3/N2P2p1/b2b2P1/5KB1 w - - 0 1)

Hannelius, Jan Ingvar

Problem (Zagreb), 1976

8/8/R3Pr2/3k1N1R/B2Pn3/N2P2p1/b2b2P1/5KB1

#2

11 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5+
      • 2.Rxf5#
    • 1...Rxe6
      • 2.Se7#
    • 1...Rg6
      • 2.Se7#
    • 1...Rh6
      • 2.Se7#
    • 1...Bb1
      • 2.Bb3#
    • 1...Bb3
      • 2.Bxb3#
    • 1...Bc4
      • 2.dxc4#
    • 1...Bf4
      • 2.Se7#
    • 1...Sf2
      • 2.Rd6#
    • 1...Sc3
      • 2.Rd6#
    • 1...Sc5
      • 2.Rd6#
    • 1...Sg5
      • 2.Rd6#
    • 1...Sd6
      • 2.Rxd6#
  • Keys
    • 1.Bc2!
      • threat
        • 2.dxe4#
      • 1...Rxf5+
        • 2.Rxf5#
      • 1...Rxe6
        • 2.Se7#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Bc4
        • 2.dxc4#
      • 1...Sf2
        • 2.Rd6#
      • 1...Sc3
        • 2.Rd6#
      • 1...Sc5
        • 2.Rd6#
      • 1...Sg5
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(f);CHECK,OGATE,P_SPINR(f),XS(H)::R(I),XR(f)
    • R(f);N_PINS(H),XP(K)::R(I)+S(H),DCHECK
    • R(f);N_PINS(H)::R(I)+S(H),DCHECK
    • B(a);N_GUARD::B(F)
    • B(a);N_GUARD::B(F),XB(a)
    • B(a);OGATE,P_PINP(E)::P(E),XB(a)
    • B(b);N_PINS(H)::R(I)+S(H),DCHECK
    • S(d);N_GUARD,N_PINS(H)::R1(J)
    • S(d);N_GUARD::R1(J)
    • S(d);N_GUARD::R1(J),XS(d)
  • Actual
    • B(F);
    • Threat
      • P(E),XS(d)
    • Vars
      • R(f);CHECK,OGATE,P_SPINR(f),XS(H)::R(I),XR(f)
      • R(f);N_PINS(H),XP(K)::R(I)+S(H),DCHECK
      • S(d);N_GUARD::R1(J),XS(d)
      • B(a);OGATE,P_PINP(E)::P(E),XB(a)
      • S(d);N_GUARD,N_PINS(H)::R1(J)
      • S(d);N_GUARD::R1(J)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).