MESON Chess Problem Database

Problem Display
PID: 22748 (6Qn/1ppp1rN1/3PP3/pPk1NR2/4P3/1R2K3/1B6/8 w - - 0 1)

Mosiashvili, Givi

The Problemist, 1998

6Qn/1ppp1rN1/3PP3/pPk1NR2/4P3/1R2K3/1B6/8

#2

11 + 7

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...b6
      • 2.Ba3#
    • 1...cxd6
      • 2.Bd4#
  • Tries
    • 1.Sc6+?
      • 1...Kc4
        • 2.Sxa5#
        • 2.Rc3#
      • 1...Kb6
        • 2.Bd4#
      • 1...Kxd6
        • 2.Ba3#
        • 2.Rd3#
        • 2.Rd5#
      • 1...Rxf5!
    • 1.Qb8?
      • threat
        • 2.Qxc7#
      • 1...Kb6
        • 2.Sc4#
      • 1...Kxd6
        • 2.Ba3#
      • 1...cxd6
        • 2.Bd4#
        • 2.Qc7#
      • 1...c6
        • 2.Bd4#
      • 1...dxe6!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxc7#
      • 1...Kb6
        • 2.Bd4#
      • 1...Kxd6
        • 2.Sc4#
      • 1...cxd6
        • 2.Ba3#
        • 2.Bd4#
        • 2.Qc7#
      • 1...dxe6
        • 2.Bd4#
      • 1...c6
        • 2.Ba3#

Anticipated by 47701(1986)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • P(c);SBLOCK::B(A)
    • P(d);SBLOCK,XP(H)::B(A)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);S_FLIGHT::B(A)
      • Refutation
        • R(f);XR(G)
    • Try
      • Q(K);
      • Threat
        • QAR2(K),XP(d)
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT::S(F)
        • K(b);P_SPINP(d),S_FLIGHT,XP(H)::B(A)
        • P(d);::B(A)
      • Refutation
        • P(e);XP(I)
  • Actual
    • Q(K);
    • Threat
      • QAR2(K),XP(d)
    • Vars
      • K(b);P_SPINP(d),S_FLIGHT::B(A)
      • K(b);P_SPINP(e),S_FLIGHT,XP(H)::S(F)
      • P(e);XP(I)::B(A)
      • P(d);::B(A)
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).