MESON Chess Problem Database

Problem Display
PID: 91666 (3Q3K/8/3n4/4P3/p2kP3/P5NR/1R3p1B/5B1N w - - 0 1)

van Gool, Johann Christoffel

Probleemblad, 1982

3Q3K/8/3n4/4P3/p2kP3/P5NR/1R3p1B/5B1N

#2

11 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qb6#
      • 2.Qxd6#
  • Tries
    • 1.Se2+?
      • 1...Kc4
        • 2.Rc3#
        • 2.Qc7#
      • 1...Kc5
        • 2.Qc7#
      • 1...Kxe4!
    • 1.Sf5+?
      • 1...Kc5
        • 2.Qb6#
        • 2.Qc7#
        • 2.Qxd6#
      • 1...Kxe4!
    • 1.Sh5?
      • 1...Kc5
        • 2.Qb6#
        • 2.Qxd6#
      • 1...Kxe4!
    • 1.Qb6+?
      • 1...Kc3
        • 2.Sf5#
        • 2.Sh5#
        • 2.Qb4#
      • 1...Kxe5!
    • 1.Qxd6+?
      • 1...Kc3
        • 2.Qb4#
        • 2.Qd2#
      • 1...Ke3!
  • Keys
    • 1.Rxf2!
      • 1...Kc3
        • 2.Sf5#
      • 1...Ke3
        • 2.Qb6#
      • 1...Kc5
        • 2.Qxd6#
      • 1...Kxe5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);N_SPINS(d),S_FLIGHT::QAR2(J)
      • Refutation
        • K(c);N_SPINS(d),P-FLIGHT,XP(H)
    • Try
      • S(F);CHECK
      • Refutation
        • K(c);N_SPINS(d),P-FLIGHT,XP(H)
    • Try
      • S(F);
      • Refutation
        • K(c);N_SPINS(d),P-FLIGHT,XP(H)
    • Try
      • Q(J);CHECK,N_PINS(d)
      • Refutation
        • K(c);S_FLIGHT,XP(I)
    • Try
      • Q(J);CHECK,XS(d)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(C);XP(a)
    • Vars
      • K(c);N_SPINS(d),S_FLIGHT::R(G)+S(F)
      • K(c);N_SPINS(d),S_FLIGHT::QAB(J)
      • K(c);N_SPINS(d),S_FLIGHT::QAB1(J),XS(d)
      • K(c);N_SPINS(d),OGATEB,S_FLIGHT,XP(I)::QAB1(J)
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).