MESON Chess Problem Database

Problem Display
PID: 99861 (6R1/4N3/2B1p2K/5b2/5kN1/r3qPp1/3n4/2B1QR2 w - - 0 1)

Dittrich, Stefan

Muller, Dieter

Magyar Sakkelet, 1984

6R1/4N3/2B1p2K/5b2/5kN1/r3qPp1/3n4/2B1QR2

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Qe5#
    • 1...Qf2
      • 2.Qe5#
    • 1...Qb6
      • 2.Qe5#
    • 1...Qa7
      • 2.Qe5#
    • 1...Qb3
      • 2.Qe5#
    • 1...Qd3
      • 2.Qe5#
    • 1...Qxf3
      • 2.Qe5#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Ra1
      • 2.Qxe3#
    • 1...Ra2
      • 2.Qxe3#
    • 1...Ra4
      • 2.Qxe3#
    • 1...Ra5
      • 2.Qxe3#
    • 1...Ra6
      • 2.Qxe3#
    • 1...Ra7
      • 2.Qxe3#
    • 1...Ra8
      • 2.Qxe3#
    • 1...Bd3
      • 2.Qxe3#
    • 1...Sb3
      • 2.Bxe3#
      • 2.Qxe3#
    • 1...Sxf3
      • 2.Rxf3#
    • 1...Se4
      • 2.fxe4#
    • 1...e5
      • 2.Sd5#
  • Keys
    • 1.Rf8!
      • threat
        • 2.Sg6#
      • 1...Qxf3
        • 2.Qe4#
      • 1...Sxf3
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 17
  • Sets
    • Q(c);OGATE,P_SPINS(a)::QAB1(B)
    • Q(c);OGATE,P_SPINQ(c),P_SPINS(a),XP(D)::QAB1(B)
    • Q(c);OGATE,P_SPINS(a)::QAB1(B),XQ(c)
    • R(b);N_GUARD::QAB1(B),XQ(c)
    • B(f);S_CUTR(b)::QAB1(B),XQ(c)
    • S(a);OGATE,P_SPINQ(c),P_SPINS(a),XP(D)::R1(C),XS(a)
    • S(a);OGATE,P_SPINQ(c)::R(C)+P(D),XS(a)
    • P(g);N_GUARD::S(H)
  • Actual
    • R(I);P_PINB(f)
    • Threat
      • S(H)
    • Vars
      • Q(c);OGATE,P_SPINQ(c),P_SPINS(a),XP(D)::QAR1(B)
      • S(a);OGATE,P_SPINQ(c),P_SPINS(a),XP(D)::QAR(B)
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).