MESON Chess Problem Database

Problem Display
PID: 219493 (6q1/3B2r1/1pQ5/1rPP4/P1k3p1/8/2N5/2N1B1K1 w - - 0 1)

Groeneveld, Cornelis

Schach-Report, 1995

6q1/3B2r1/1pQ5/1rPP4/P1k3p1/8/2N5/2N1B1K1

#2

9 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd5
      • 2.Qxb5#
    • 1...Rb1
      • 2.cxb6#
    • 1...Rb2
      • 2.cxb6#
    • 1...Rb3
      • 2.cxb6#
    • 1...Rb4
      • 2.cxb6#
  • Tries
    • 1.Bf5?
      • threat
        • 2.Bd3#
      • 1...Qxd5
        • 2.Qxb5#
      • 1...Rb3
        • 2.cxb6#
      • 1...Qh7!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qd4#
      • 1...Kxc5
        • 2.Qc6#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Qxd5
        • 2.Qc3#
      • 1...bxc5
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(f);SBLOCK,XP(G)::QAB1(H),XR(c)
    • R(c);N_GUARD::QAR(H)+P(F),XP(d)
  • Tries
    • Try
      • B(I);
      • Threat
        • B(I)
      • Vars
        • Q(f);SBLOCK,XP(G)::QAB1(H),XR(c)
        • R(c);N_GUARD::QAR(H)+P(F),XP(d)
      • Refutation
        • Q(f);
  • Actual
    • Q(H);
    • Threat
      • QAR1(H)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(F)::QAR1(H)
      • K(a);S_FLIGHT,XP(G)::QAR1(H)
      • Q(f);SBLOCK,XP(G)::QAR1(H)
      • P(d);SBLOCK,XP(F)::S(D)
HTML5 logo

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).