MESON Chess Problem Database

Problem Display
PID: 263798 (8/b5pr/4b3/1B1k2Kp/nQ2N3/3ppN2/1n6/8 w - - 0 1)

Franken, Maurits

Tijdschrift vd NSB, 1921

8/b5pr/4b3/1B1k2Kp/nQ2N3/3ppN2/1n6/8

#2

5 + 10

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qxd4#
    • 1...Bb8
      • 2.Qd4#
    • 1...Sd1
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Sc5
      • 2.Qd4#
    • 1...Sb6
      • 2.Sc3#
      • 2.Qd4#
    • 1...g6
      • 2.Sf6#
  • Tries
    • 1.Qb3+?
      • 1...Sc4
        • 2.Qxc4#
      • 1...Kxe4!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qb7#
      • 1...Kxe4
        • 2.Bc6#
      • 1...Bh3
        • 2.Qe5#
      • 1...Bg4
        • 2.Qe5#
      • 1...Bf5
        • 2.Qe5#
      • 1...Bd7
        • 2.Qe5#
      • 1...Bf7
        • 2.Qe5#
      • 1...Bc8
        • 2.Qe5#
      • 1...Bg8
        • 2.Qe5#
      • 1...Sc5
        • 2.Sc3#
      • 1...g6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 5
  • Sets
    • B(h);N_GUARD::QAR1(B),XB(h)
    • B(h);N_GUARD::QAR1(B)
    • S(a);N_GUARD::QAB1(B)
    • S(a);N_GUARD::QAB1(B),XS(a)
    • S(d);N_GUARD::S(C),XS(d)
    • S(d);S_CUTB(h)::QAR1(B)
    • P(i);N_GUARD::S(C)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(B),XS(a)
      • Refutation
        • K(e);S_FLIGHT,XS(C)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • K(e);N_GUARD,P_SPINB(g),S_FLIGHT,XS(C)::B(D)
      • B(g);OGATE::QAR1(B)
      • S(d);N_GUARD::S(C)
      • P(i);N_GUARD::S(C)
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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).