MESON Chess Problem Database

Problem Display
PID: 16868 (K3RN2/1p1N3b/3kP3/BQ2pn1r/Bp6/3p4/2n5/2q1r1b1 w - - 0 1)

Jorgensen, Walther Martinus Johannes

1st HM., Arbejder-Skak, 1944

K3RN2/1p1N3b/3kP3/BQ2pn1r/Bp6/3p4/2n5/2q1r1b1

#2

8 + 12

3098 FIDE Album (1914-1944) (I) 1971
15593 170 Skakopgaver (Jorgensen) 1975

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qxe5#
    • 1...Rf1
      • 2.Qxe5#
    • 1...Re3
      • 2.Qc5#
    • 1...Bh2
      • 2.Qc5#
    • 1...Be3
      • 2.Qxe5#
    • 1...Bc5
      • 2.Qxc5#
    • 1...Sce3
      • 2.Qxe5#
    • 1...Sfe3
      • 2.Qc5#
    • 1...Sd4
      • 2.Qc5#
    • 1...e4
      • 2.Qe5#
    • 1...b6
      • 2.Qc6#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Sxb7#
      • 1...Bxc5
        • 2.Qd7#
      • 1...b6
        • 2.Qc6#
      • 1...Kd5!
    • 1.Bxb4+?
      • 1...Kc7
        • 2.Qxb7#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sxb4!
    • 1.Qc4?
      • threat
        • 2.Bc7#
      • 1...Bc5
        • 2.Qxc5#
      • 1...b6
        • 2.Qc6#
      • 1...Bb6!
    • 1.Qxb4+?
      • 1...Kd5
        • 2.Sf6#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sxb4!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qd5#
      • 1...Bb6
        • 2.Qxb6#
      • 1...b6
        • 2.Qc6#
      • 1...Bc5
        • 2.Qd7#
      • 1...Sce3
        • 2.Se4#
      • 1...Sfe3
        • 2.Qb6#
      • 1...Se7
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD::QAB1(C),XP(g)
    • R(b);S_CUTB(c)::QAB1(C)
    • B(c);N_GUARD::QAB1(C)
    • B(c);S_CUTR(b)::QAB1(C),XP(g)
    • B(c);N_GUARD::QAB1(C),XB(c)
    • S(d);S_CUTR(b)::QAB1(C),XP(g)
    • S(h);S_CUTB(c)::QAB1(C)
    • P(g);S_CUTR(b)::QAB1(C)
    • P(k);N_GUARD::QAR1(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E),XP(k)
      • Vars
        • B(c);SBLOCK,XS(E)::QAR1(C)
        • P(k);N_GUARD::QAR1(C)
      • Refutation
        • K(j);P-FLIGHT
    • Try
      • B(B);CHECK,XP(f)
      • Vars
        • K(j);S_FLIGHT::QAR1(C),XP(k)
        • B(c);N_GUARD,P_SPINB(c)::QAB1(C),XB(c)
      • Refutation
        • S(d);XB(B)
    • Try
      • Q(C);
      • Threat
        • B(B)
      • Vars
        • B(c);N_GUARD::QAB1(C),XB(c)
        • P(k);N_GUARD::QAR1(C)
      • Refutation
        • B(c);
    • Try
      • Q(C);CHECK,XP(f)
      • Vars
        • K(j);P-FLIGHT::S(E)
        • B(c);N_GUARD,P_SPINB(c)::QAB1(C),XB(c)
      • Refutation
        • S(d);XQ(C)
  • Actual
    • S(E);
    • Threat
      • QAR1(C)
    • Vars
      • B(c);N_GUARD::QAR2(C),XB(c)
      • P(k);N_GUARD::QAR1(C)
      • B(c);SBLOCK::QAR1(C)
      • S(d);S_CUTR(b)::S(E)
      • S(h);S_CUTB(c)::QAR2(C)
      • S(h);SBLOCK::R(G)
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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).