MESON Chess Problem Database

Problem Display
PID: 232788 (1N1bnB2/4p2p/R2p4/1q1Nkr1R/3pb1p1/1Q3pK1/8/1B6 w - - 0 1)

Hoy, Paul

Freie Presse, 1979

1N1bnB2/4p2p/R2p4/1q1Nkr1R/3pb1p1/1Q3pK1/8/1B6

#2

8 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc7?
      • threat
        • 2.Qe6#
      • 1...Kf6
        • 2.Qe6#
      • 1...Qxb3
        • 2.Sd7#
      • 1...Sxc7
        • 2.Bg7#
      • 1...d3
        • 2.Qc3#
      • 1...Qc4
        • 2.Sd7#
      • 1...Qd7
        • 2.Sxd7#
      • 1...Qd5
        • 2.Sd7#
      • 1...Bd5
        • 2.Rxf5#
      • 1...Sg7
        • 2.Bxg7#
      • 1...d5
        • 2.Re6#
      • 1...e6
        • 2.Qxe6#
      • 1...Bxc7!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qe6#
      • 1...Kf6
        • 2.Qe6#
      • 1...Qxb3
        • 2.Sd7#
      • 1...d3
        • 2.Qc3#
      • 1...Qc4
        • 2.Sd7#
      • 1...Qd7
        • 2.Sxd7#
      • 1...Qd5
        • 2.Sd7#
      • 1...Bd5
        • 2.Rxf5#
      • 1...Sc7
        • 2.Bg7#
      • 1...Sg7
        • 2.Bxg7#
      • 1...d5
        • 2.Re6#
      • 1...e6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(B)
      • Vars
        • K(f);N_SPINR(g),P_SPINP(h),S_FLIGHT::QAR1(B)
        • Q(e);N_GUARD,XQ(B)::S(G)
        • S(l);N_GUARD,XS(D)::B(H)
        • P(b);OGATEB::QAB(B)
        • Q(e);N_GUARD::S(G)
        • Q(e);N_GUARD::S(G),XQ(e)
        • B(c);N_GUARD::R1(E),XR(g)
        • S(l);N_GUARD::B(H),XS(l)
        • P(h);OGATE::R1(F)
        • P(i);::QAR1(B),XP(i)
      • Refutation
        • B(k);XS(D)
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • K(f);N_SPINR(g),P_SPINP(h),S_FLIGHT::QAR1(B)
      • Q(e);N_GUARD,XQ(B)::S(G)
      • P(b);OGATEB::QAB(B)
      • Q(e);N_GUARD::S(G)
      • Q(e);N_GUARD::S(G),XQ(e)
      • B(c);N_GUARD::R1(E),XR(g)
      • S(l);N_GUARD::B(H)
      • S(l);N_GUARD::B(H),XS(l)
      • P(h);OGATE::R1(F)
      • P(i);::QAR1(B),XP(i)
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).