MESON Chess Problem Database

Problem Display
PID: 202555 (nK1Q4/1p2p1p1/4p3/1r2k3/1P1NN2R/r3R3/3q1P1b/7B w - - 0 1)

Simay-Molnar, Aladar

Magyar Sakkvilag, 1923

nK1Q4/1p2p1p1/4p3/1r2k3/1P1NN2R/r3R3/3q1P1b/7B

#2

9 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.f4#
  • Tries
    • 1.Qc7+?
      • 1...Kxd4
        • 2.Sg3#
      • 1...Kd5
        • 2.Sxd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sg5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Sxc7!
  • Keys
    • 1.Qxe7!
      • threat
        • 2.Qd6#
      • 1...Kxd4+
        • 2.Sg3#
      • 1...Kd5+
        • 2.Sd6#
      • 1...Qxb4
        • 2.Sc3#
      • 1...Qxd4
        • 2.Qg5#
      • 1...Ra6
        • 2.Sxd2#
      • 1...Rd5
        • 2.Qxg7#
      • 1...Rb6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD::P(B)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(e);P_PINQ(I),S_FLIGHT,XS(E)::R(G)+S(F)
      • Refutation
        • S(j);XQ(I)
  • Actual
    • Q(I);P_PINP(f),XP(h)
    • Threat
      • QAB1(I)
    • Vars
      • K(e);CHECK,N_SPINP(f),S_FLIGHT,XS(E)::R(G)+S(F)
      • K(e);CHECK,N_SPINP(f),P-FLIGHT::B(A)+S(F)
      • Q(a);N_GUARD,XP(D)::R(C)+S(F)
      • Q(a);SBLOCK,XS(E)::QAR2(I)
      • R(c);N_GUARD::R(C)+S(F),XQ(a)
      • R(d);SBLOCK::QAB(I),XP(i)
      • R(d);N_GUARD::QAR2(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).