MESON Chess Problem Database

Problem Display
PID: 233471 (8/p3R3/4pBNn/p3nkPP/K3Nr2/5PpP/6Q1/7B w - - 0 1)

Rosenthal, Moisej Schlemowitsch

Freie Presse, 1967

8/p3R3/4pBNn/p3nkPP/K3Nr2/5PpP/6Q1/7B

#2

11 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf3
      • 2.Sd6#
    • 1...Rxe4+
      • 2.fxe4#
    • 1...Sc4
      • 2.Sxg3#
    • 1...Seg4
      • 2.Sh4#
    • 1...Shg4
      • 2.Sh4#
  • Tries
    • 1.Kb5?
      • threat
        • 2.Sxg3#
        • 2.Sd6#
      • 1...Rxf3
        • 2.Sd6#
      • 1...Rxe4
        • 2.fxe4#
      • 1...Rg4
        • 2.Sd6#
      • 1...Sc4
        • 2.Sxg3#
      • 1...Sef7
        • 2.Sxg3#
      • 1...Shf7
        • 2.Sxg3#
      • 1...a6+!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qxe6#
      • 1...Rxe4+
        • 2.fxe4#
      • 1...Rxf3
        • 2.Sd6#
      • 1...Sc4
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(b);N_PINS(F),XP(C)::S(F)
    • R(b);CHECK,OGATE,XS(F)::P(C),XR(b)
    • S(d);N_PINS(F)::S(F),XP(a)
    • S(d);S_CUTR(b)::S(J)
    • S(g);S_CUTR(b)::S(J)
  • Tries
    • Try
      • K(E);N_SPINS(F),S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(C)::S(F)
        • R(b);OGATE,XS(F)::P(C),XR(b)
        • R(b);::S(F)
        • S(d);::S(F),XP(a)
        • S(g);::S(F),XP(a)
      • Refutation
        • P(h);CHECK
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XP(f)
    • Vars
      • R(b);CHECK,OGATE,XS(F)::P(C),XR(b)
      • R(b);N_PINS(F),XP(C)::S(F)
      • S(d);N_PINS(F)::S(F),XP(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).