MESON Chess Problem Database

Problem Display
PID: 195918 (3Rb1N1/1r6/3ppn2/3k2bq/2R4p/N2ppPp1/1Qn1B3/6K1 w - - 0 1)

Jordan, Gijsbertus

Haagsche Post, 1921

3Rb1N1/1r6/3ppn2/3k2bq/2R4p/N2ppPp1/1Qn1B3/6K1

#2

8 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Se7#
    • 1...Rb4
      • 2.Se7#
    • 1...Rb5
      • 2.Se7#
    • 1...Rb6
      • 2.Se7#
    • 1...Rd7
      • 2.Qb5#
    • 1...Re7
      • 2.Sxe7#
    • 1...Rb8
      • 2.Se7#
    • 1...Bf4
      • 2.Sxf6#
    • 1...Bh6
      • 2.Sxf6#
    • 1...Bd7
      • 2.Se7#
    • 1...Sa1
      • 2.Qd4#
    • 1...Se1
      • 2.Qd4#
    • 1...Sxa3
      • 2.Qd4#
    • 1...Sb4
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Se4
      • 2.fxe4#
  • Keys
    • 1.f4!
      • threat
        • 2.Qe5#
      • 1...Rxb2
        • 2.Se7#
      • 1...Bxf4
        • 2.Sxf6#
      • 1...Sxa3
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...e5
        • 2.Qxe5#
      • 1...Rd7
        • 2.Qb5#
      • 1...Bh6
        • 2.Sxf6#
      • 1...Bd7
        • 2.Se7#
      • 1...Sg4
        • 2.Bf3#
      • 1...Sd7
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 10
  • Sets
    • R(l);N_GUARD::S(H)
    • R(l);N_GUARD,N_SPINP(i),S_CUTB(m)::QAR2(B)
    • R(l);N_GUARD::S(H),XR(l)
    • B(g);N_GUARD::S(H),XS(k)
    • B(m);N_SPINP(i),S_CUTR(l)::S(H)
    • S(a);N_GUARD::QAR1(B)
    • S(a);N_GUARD,XS(D)::QAR1(B)
    • S(a);N_GUARD::QAR1(B),XS(a)
    • S(k);OGATE::P(E),XS(k)
  • Actual
    • P(E);
    • Threat
      • QAR1(B)
    • Vars
      • R(l);N_GUARD,XQ(B)::S(H)
      • B(g);N_GUARD,XP(E)::S(H),XS(k)
      • S(a);N_GUARD,XS(D)::QAR1(B)
      • S(a);N_GUARD::QAR1(B),XS(a)
      • P(j);::QAR1(B),XP(j)
      • R(l);N_GUARD,N_SPINP(i),S_CUTB(m)::QAR2(B)
      • B(g);N_GUARD::S(H),XS(k)
      • B(m);N_SPINP(i),S_CUTR(l)::S(H)
      • S(k);N_GUARD,S_CUTQ(h)::B(C)
      • S(k);N_SPINP(i),S_CUTB(m)::QAB(B),XR(l)
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).