MESON Chess Problem Database

Problem Display
PID: 242763 (7n/2pp3K/2p2Q2/R1pkppp1/3N1b2/3P2n1/5N2/B2RrB1b w - - 0 1)

Bakcsi, Gyorgy

Thema Danicum, 1979

7n/2pp3K/2p2Q2/R1pkppp1/3N1b2/3P2n1/5N2/B2RrB1b

#2

9 + 13

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d6
      • 2.Qe6#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Sb4#
      • 1...Re4
        • 2.dxe4#
      • 1...Bd2!
    • 1.Sb3?
      • threat
        • 2.Rxc5#
      • 1...Be3
        • 2.Qxe5#
      • 1...Se4
        • 2.dxe4#
      • 1...d6!
    • 1.Sb5?
      • threat
        • 2.Sxc7#
      • 1...e4
        • 2.Sc3#
        • 2.dxe4#
      • 1...cxb5!
    • 1.Sxf5?
      • threat
        • 2.Se7#
      • 1...Be4
        • 2.dxe4#
      • 1...Sg6
        • 2.Qf7#
      • 1...Sxf5!
    • 1.Sxc6?
      • threat
        • 2.Sb4#
        • 2.Se7#
      • 1...Re4
        • 2.Se7#
        • 2.dxe4#
      • 1...Bd2
        • 2.Se7#
      • 1...Sg6
        • 2.Sb4#
      • 1...dxc6!
    • 1.Qe7?
      • threat
        • 2.Rxc5#
        • 2.Qxc5#
        • 2.Qxd7#
      • 1...exd4
        • 2.Rxc5#
      • 1...Sf7
        • 2.Rxc5#
        • 2.Qxc5#
      • 1...e4
        • 2.Rxc5#
        • 2.Qxc5#
      • 1...d6
        • 2.Qe6#
      • 1...Se4!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sxc7#
      • 1...Kd6
        • 2.Sxf4#
      • 1...dxe6
        • 2.Qd8#
      • 1...e4
        • 2.dxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(l);N_GUARD::QAB1(H)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • R(a);OGATE::R(B)+P(E)DCHECK,XR(a)
      • Refutation
        • B(d);
    • Try
      • S(F);
      • Threat
        • R1(G),XP(e)
      • Vars
        • B(d);N_GUARD,S_CUTR(a)::QAR1(H),XP(g)
        • S(c);OGATE::R(B)+P(E)DCHECK,XS(c)
      • Refutation
        • P(l);
    • Try
      • S(F);N_PINP(e)
      • Threat
        • S(F),XP(k)
      • Refutation
        • P(j);XS(F)
    • Try
      • S(F);XP(h)
      • Threat
        • S(F)
      • Vars
        • B(b);OGATE,P_PINS(F)::R(B)+P(E)DCHECK,XB(b)
        • S(m);N_GUARD::QAB(H)
      • Refutation
        • S(c);XS(F)
    • Try
      • S(F);XP(j)
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::S(F)
        • S(m);::S(F)
      • Refutation
        • P(l);XS(F)
    • Try
      • Q(H);
      • Threat
        • DUALS(3)
      • Vars
        • P(g);XS(F)::R1(G),XP(e)
        • P(l);N_GUARD::QAB1(H)
      • Refutation
        • S(c);
  • Actual
    • S(F);
    • Threat
      • S(F),XP(k)
    • Vars
      • K(f);N_SPINP(e),P-FLIGHT::QAR(H)+S(F),XB(d)
      • P(l);OGATEB,SBLOCK,XS(F)::QAR(H)
      • P(g);OGATE::R(B)+P(E)DCHECK,XP(g)
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).