MESON Chess Problem Database

Problem Display
PID: 148180 (3qRr2/p1p3pb/2P1p1B1/K1Q1br2/1N1pkpn1/3p1N2/3P2P1/8 w - - 0 1)

Adabashev, Mark Ivanovich

L'Italia Scacchistica, 1930

3qRr2/p1p3pb/2P1p1B1/K1Q1br2/1N1pkpn1/3p1N2/3P2P1/8

#2

9 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Qg5
      • 2.Sxg5#
    • 1...Qd5
      • 2.Sg5#
    • 1...Qd6
      • 2.Sg5#
    • 1...Qd7
      • 2.Sg5#
    • 1...Qa8
      • 2.Sg5#
    • 1...Qb8
      • 2.Sg5#
    • 1...Qc8
      • 2.Sg5#
    • 1...Qxe8
      • 2.Sg5#
    • 1...Rf6
      • 2.Sg5#
    • 1...Bd6
      • 2.Qd5#
    • 1...Bf6
      • 2.Qxf5#
    • 1...Sf2
      • 2.Qxe5#
    • 1...Sh2
      • 2.Qxe5#
    • 1...Se3
      • 2.Qxe5#
    • 1...Sf6
      • 2.Sg5#
      • 2.Qxe5#
    • 1...Sh6
      • 2.Qxe5#
  • Tries
    • 1.Qxd4+?
      • 1...Qxd4
        • 2.Sg5#
      • 1...Bxd4+!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qxd3#
      • 1...Qd5
        • 2.Sg5#
      • 1...Bd6
        • 2.Qd5#
      • 1...Bf6
        • 2.Qxf5#
      • 1...Sf2
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • Q(m);N_GUARD::S(C),XQ(m)
    • Q(m);N_GUARD,P_PINQ(F)::S(C)
    • Q(m);N_GUARD::S(C)
    • Q(m);N_GUARD,XR(I)::S(C)
    • R(n);S_CUTQ(m)::S(C)
    • B(f);P_PINQ(F),P_SPINP(h),S_CUTQ(m)::QAB1(F)
    • B(f);OGATE,P_PINQ(F),P_SPINP(h)::QAB1(F),XR(g)
    • S(e);N_GUARD::QAR1(F),XB(f)
  • Tries
    • Try
      • Q(F);CHECK,XP(b)
      • Vars
        • Q(m);SBLOCK,XQ(F)::S(C)
      • Refutation
        • B(f);CHECK,P_SPINP(h),XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F),XP(a)
    • Vars
      • Q(m);N_GUARD,P_PINQ(F)::S(C)
      • B(f);P_PINQ(F),P_SPINP(h),S_CUTQ(m)::QAB1(F)
      • B(f);OGATE,P_PINQ(F),P_SPINP(h)::QAB1(F),XR(g)
      • S(e);N_GUARD::QAR1(F),XB(f)
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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).