MESON Chess Problem Database

Problem Display
PID: 240032 (N4B2/1PpN2Q1/b1B5/kp6/rR6/p7/3K4/8 w - - 0 1)

Mosiashvili, Givi

64 Shakhmatnoe obozrenie, 1990

N4B2/1PpN2Q1/b1B5/kp6/rR6/p7/3K4/8

#2

8 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rxa4+?
      • 1...bxa4
        • 2.Qc3#
      • 1...Kxa4!
    • 1.Qc3?
      • threat
        • 2.Rxb5#
      • 1...Rxb4
        • 2.Qxb4#
      • 1...Bxb7!
    • 1.Qe5?
      • threat
        • 2.Qxc7#
      • 1...Bxb7
        • 2.Qxb5#
      • 1...Rxb4!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sb3#
      • 1...Kxb4
        • 2.Qc3#
      • 1...Rxb4
        • 2.Qxc7#
      • 1...Bxb7
        • 2.Rxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK,XR(b)
      • Vars
        • P(d);XR(B)::QAB(F)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(d),XR(B)
    • Try
      • Q(F);
      • Threat
        • QAB(F)+R(B),DCHECK,XP(d)
      • Vars
        • R(b);OGATE,P_SPINR(b),XR(B)::QAB1(F),XR(b)
      • Refutation
        • B(e);XP(D)
    • Try
      • Q(F);P_PINP(d)
      • Threat
        • QAB(F),XP(f)
      • Vars
        • B(e);N_GUARD,XP(D)::QAR1(F),XP(d)
      • Refutation
        • R(b);XR(B)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(B)::QAB1(F)
      • R(b);SBLOCK,XR(B)::QAB(F),XP(f)
      • B(e);N_GUARD,XP(D)::R1(B),XP(d)
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).