MESON Chess Problem Database

Problem Display
PID: 156524 (2R5/1B3N2/3Pp2K/1Q2p1p1/1r1k2N1/2pn4/3n1P2/1rbRqb2 w - - 0 1)

Andersson, Sven Tore

Revista Romana de Sah, 1973

2R5/1B3N2/3Pp2K/1Q2p1p1/1r1k2N1/2pn4/3n1P2/1rbRqb2

#2

9 + 12

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.fxe3#
    • 1...Sb3
      • 2.Qxb4#
    • 1...Sf3
      • 2.Qc5#
    • 1...Sc4
      • 2.Qc5#
    • 1...Se4
      • 2.Qxe5#
  • Keys
    • 1.Sxg5!
      • threat
        • 2.Sxe6#
      • 1...Qe3
        • 2.fxe3#
      • 1...Sb3
        • 2.Qxb4#
      • 1...Sf3
        • 2.Qc5#
      • 1...Sc4
        • 2.Qc5#
      • 1...Se4
        • 2.Qxe5#
      • 1...Sf4
        • 2.Sf3#
      • 1...Sc5
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(c);OGATE::P(B),XQ(c)
    • S(e);N_GUARD,P_SPINS(g),S_CUTR(a)::QAR2(D),XR(h)
    • S(e);P_SPINS(g)::QAB1(D)
    • S(e);P_SPINS(g),S_CUTQ(c)::QAB1(D),XP(j)
  • Actual
    • S(H);XP(k)
    • Threat
      • S(H),XP(l)
    • Vars
      • Q(c);OGATE,P_PINS(H)::P(B),XQ(c)
      • S(e);N_GUARD,P_PINS(H),P_SPINS(g),S_CUTR(a)::QAR2(D),XR(h)
      • S(e);P_PINS(H),P_SPINS(g)::QAB1(D)
      • S(e);P_PINS(H),P_SPINS(g),S_CUTQ(c)::QAB1(D),XP(j)
      • S(g);P_SPINS(e)::S(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).