MESON Chess Problem Database

Problem Display
PID: 69568 (n7/n2K4/4Np2/3kp1b1/2N1p3/2Q5/P7/5b2 w - - 0 1)

Colpa, Johannes J

Tijdschrift vd NSB, 1898

n7/n2K4/4Np2/3kp1b1/2N1p3/2Q5/P7/5b2

#2

5 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.Sxe3#
    • 1...Bh4
      • 2.Se3#
    • 1...Sb6+
      • 2.Sxb6#
    • 1...Sc7
      • 2.Sb6#
  • Tries
    • 1.Sc7+?
      • 1...Sxc7
        • 2.Sb6#
      • 1...Kc5!
    • 1.Qb4?
      • threat
        • 2.Qc5#
      • 1...Sb6+
        • 2.Sxb6#
      • 1...Be3
        • 2.Sxe3#
      • 1...e3!
    • 1.Qa5+?
      • 1...Sb5
        • 2.Qxb5#
      • 1...Kxc4!
    • 1.Qa3?
      • threat
        • 2.Qc5#
      • 1...Sb6+
        • 2.Sxb6#
      • 1...Kxc4
        • 2.Qb3#
      • 1...Be3
        • 2.Sxe3#
      • 1...e3!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qc5#
      • 1...Sb6+
        • 2.Sxb6#
      • 1...Kxc4
        • 2.Qb3#
      • 1...Bxe3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(e);N_GUARD::S(C),XB(e)
    • B(e);N_GUARD::S(C)
    • S(h);CHECK,N_GUARD::S(C),XS(h)
    • S(h);N_GUARD::S(C)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • S(h);XS(D)::S(C)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • S(h);CHECK,N_GUARD::S(C),XS(h)
        • B(e);N_GUARD::S(C),XB(e)
      • Refutation
        • P(b);
    • Try
      • Q(B);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::QAR2(B),XS(g)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • S(h);CHECK,N_GUARD::S(C),XS(h)
        • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • B(e);N_GUARD::S(C),XB(e)
      • Refutation
        • P(b);
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • S(h);CHECK,N_GUARD::S(C),XS(h)
      • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
      • B(e);XQ(B)::S(C),XB(e)
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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).