MESON Chess Problem Database

Problem Display
PID: 214723 (2R3R1/3p4/1p1k2NK/2pP4/3BP3/n6N/3r1r2/q2Q4 w - - 0 1)

Harvey, Phillip Francis

Detroit Free Press, 1877

2R3R1/3p4/1p1k2NK/2pP4/3BP3/n6N/3r1r2/q2Q4

#2

9 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Be5#
    • 1...Qc1
      • 2.Be5#
    • 1...Qxd1
      • 2.Be5#
    • 1...Qa2
      • 2.Be5#
    • 1...Rb2
      • 2.Be5#
    • 1...b5
      • 2.Bxc5#
  • Tries
    • 1.Qb3?
      • threat
        • 2.Qxb6#
        • 2.e5#
      • 1...Qxd4
        • 2.Qxb6#
      • 1...Qb2
        • 2.e5#
      • 1...Qb1
        • 2.Be5#
        • 2.e5#
      • 1...Qe1
        • 2.Be5#
        • 2.Qxb6#
      • 1...Rb2
        • 2.Be5#
        • 2.e5#
      • 1...Rde2
        • 2.Qxb6#
      • 1...Rfe2
        • 2.Qg3#
        • 2.Qxb6#
      • 1...Rf5
        • 2.Qxb6#
      • 1...Sb5
        • 2.e5#
      • 1...c4
        • 2.Qb4#
        • 2.Qxb6#
      • 1...b5
        • 2.Bxc5#
        • 2.e5#
      • 1...Sc4!
  • Keys
    • 1.Rgd8!
      • threat
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::B(C)
    • Q(a);N_GUARD,XQ(A)::B(C)
    • R(b);S_CUTQ(a)::B(C)
    • P(f);N_GUARD::B(C),XP(e)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);XB(C)::QAR2(A),XP(f)
        • Q(a);::P(D)
        • R(b);::QAR2(A),XP(f)
        • R(c);::QAR2(A),XP(f)
        • S(d);::P(D)
      • Refutation
        • S(d);
  • Actual
    • R(I);P_PINP(h)
    • Threat
      • R1(H)
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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).