MESON Chess Problem Database

Problem Display
PID: 242205 (2B2b2/R3pp2/1N1P1P1p/1K2k3/1p4QP/1r1pN3/1n6/7n w - - 0 1)

Kisis, Imants J

Shakhmaty v SSSR, 1965

2B2b2/R3pp2/1N1P1P1p/1K2k3/1p4QP/1r1pN3/1n6/7n

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Qd4#
    • 1...Kxf6
      • 2.Sd7#
    • 1...exd6
      • 2.Sd7#
  • Tries
    • 1.Kc6?
      • threat
        • 2.Sd7#
      • 1...Kxf6
        • 2.Sd7#
      • 1...Rc3+!
    • 1.Sec4+?
      • 1...Kxf6
        • 2.Sd5#
        • 2.Sd7#
      • 1...Sxc4!
    • 1.Sbc4+?
      • 1...Kxf6
        • 2.Sd5#
      • 1...Sxc4!
    • 1.Ra6?
      • threat
        • 2.Sd7#
      • 1...Kxf6
        • 2.Sd7#
      • 1...Kxd6!
    • 1.Rxe7+?
      • 1...Kxd6
        • 2.Sf5#
        • 2.Qd7#
        • 2.Qd4#
        • 2.Qf4#
      • 1...Kxf6
        • 2.Sed5#
        • 2.Sbd5#
        • 2.Sd7#
      • 1...Bxe7!
    • 1.Qf5+?
      • 1...Kxd6
        • 2.Rd7#
        • 2.Qc5#
        • 2.Qd5#
      • 1...Kd4!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Qf4#
      • 1...Kxd6
        • 2.Qd4#
      • 1...Kxf6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(f);S_FLIGHT,XP(F)::QAR2(B)
    • K(f);S_FLIGHT,XP(G)::S(E)
    • P(h);SBLOCK,XP(F)::S(E)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • S(E)
      • Vars
        • K(f);S_FLIGHT,XP(G)::S(E)
      • Refutation
        • R(c);CHECK
    • Try
      • S(A);CHECK
      • Refutation
        • S(b);XS(A)
    • Try
      • S(E);CHECK
      • Vars
        • K(f);S_FLIGHT,XP(G)::S(A)
      • Refutation
        • S(b);XS(E)
    • Try
      • R(H);
      • Threat
        • S(E)
      • Vars
        • K(f);S_FLIGHT,XP(G)::S(E)
      • Refutation
        • K(f);S_FLIGHT,XP(F)
    • Try
      • R(H);CHECK,XP(h)
      • Refutation
        • B(j);XR(H)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAB1(B)
    • Vars
      • K(f);S_FLIGHT,XP(F)::QAR2(B)
      • K(f);S_FLIGHT,XP(G)::S(E)
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).