MESON Chess Problem Database

Problem Display
PID: 120032 (2BKn3/7Q/1Rp1P3/2Bkp2P/N7/N2q4/1n2P3/5b2 w - - 0 1)

Henriksen, Thorleif Cammillo

Morgenblatt, 1909

2BKn3/7Q/1Rp1P3/2Bkp2P/N7/N2q4/1n2P3/5b2

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qb5
      • 2.e4#
    • 1...Qa6
      • 2.e4#
    • 1...Qd1
      • 2.e4#
    • 1...Qd2
      • 2.e4#
    • 1...Qb3
      • 2.e4#
    • 1...Qc3
      • 2.e4#
    • 1...Qg3
      • 2.e4#
    • 1...Qh3
      • 2.e4#
    • 1...Sd1
      • 2.Qxd3#
    • 1...Sc4
      • 2.Qxd3#
    • 1...e4
      • 2.Qf5#
  • Tries
    • 1.Qd7+?
      • 1...Sd6
        • 2.Qxc6#
      • 1...Ke4!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Sb6#
      • 1...Qxb5
        • 2.e4#
      • 1...Qxh7
        • 2.Sc3#
      • 1...Sxa4
        • 2.Qxd3#
      • 1...cxb5
        • 2.Qb7#
      • 1...Qf5
        • 2.Sc3#
      • 1...Qg6
        • 2.Sc3#
      • 1...e4
        • 2.Qf5#
      • 1...Sc4
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 8
  • Sets
    • Q(c);N_GUARD::P(A)
    • S(b);N_GUARD::QAR2(H),XQ(c)
    • P(e);OGATEB::QAR2(H)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • S(g);P_SPINS(g)::QAB1(H),XP(f)
      • Refutation
        • K(d);P_PINQ(H),S_FLIGHT
  • Actual
    • R(F);
    • Threat
      • S(C)
    • Vars
      • Q(c);N_GUARD,XR(F)::P(A)
      • Q(c);N_GUARD,XQ(H)::S(C)
      • S(b);N_GUARD,XS(C)::QAR2(H),XQ(c)
      • P(f);OGATEB,XR(F)::QAB(H)
      • Q(c);N_GUARD::S(C)
      • P(e);OGATEB::QAR2(H)
      • S(b);N_GUARD::QAR2(H),XQ(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).