MESON Chess Problem Database

Problem Display
PID: 256514 (5Q2/3k2P1/N1p5/n7/2qN3K/1B6/b2R4/8 w - - 0 1)

Barulin, Mikhail Mikhailovich

Wiener Schachzeitung, 1929

5Q2/3k2P1/N1p5/n7/2qN3K/1B6/b2R4/8

#2

7 + 5

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Se2#
    • 1...Qe2
      • 2.Sxe2#
    • 1...Qb5
      • 2.Sxb5#
    • 1...Qxa6
      • 2.Sb5#
    • 1...Qe6
      • 2.Sxe6#
    • 1...Qf7
      • 2.Se6#
    • 1...Qg8
      • 2.Se6#
    • 1...Qc2
      • 2.Sxc2#
    • 1...Qxd4+
      • 2.Rxd4#
  • Tries
    • 1.Qe7+?
      • 1...Kc8
        • 2.Qc7#
      • 1...Kxe7!
    • 1.g8Q?
      • threat
        • 2.Qd8#
      • 1...Qxd4+
        • 2.Rxd4#
        • 2.Qg4#
      • 1...Qxg8
        • 2.Se6#
      • 1...Sb7!
    • 1.g8R?
      • threat
        • 2.Qd8#
      • 1...Qxd4+
        • 2.Rxd4#
      • 1...Qxg8
        • 2.Se6#
      • 1...Sb7!
  • Keys
    • 1.g8S!
      • threat
        • 2.Sf6#
      • 1...Qxd4+
        • 2.Rxd4#
      • 1...Qxa6
        • 2.Sb5#
      • 1...Qxg8
        • 2.Se6#
      • 1...Qf1
        • 2.Se2#
      • 1...Qe6
        • 2.Sxe6#
      • 1...Qf7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(b);N_PINS(C)::R(A)+S(C)
    • Q(b);N_PINS(C)::R(A)+S(C),XQ(b)
    • Q(b);N_PINS(C),XS(E)::R(A)+S(C)
    • Q(b);CHECK,OGATE,P_SPINQ(b),XS(C)::R(A),XQ(b)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(e);OGATE,S_FLIGHT::QAR1(G)
      • Refutation
        • K(e);P-FLIGHT,XQ(G)
    • Try
      • P(F);
      • Threat
        • QAR1(G)
      • Vars
        • Q(b);N_PINS(C),XQ(F)::R(A)+S(C)
      • Refutation
        • S(c);
    • Try
      • P(F);
      • Threat
        • QAR1(G)
      • Vars
        • Q(b);CHECK,OGATE,P_SPINQ(b),XS(C)::R(A),XQ(b)
        • Q(b);N_PINS(C),XR(F)::R(A)+S(C)
      • Refutation
        • S(c);
  • Actual
    • P(F);
    • Threat
      • S(F)
    • Vars
      • Q(b);CHECK,OGATE,P_SPINQ(b),XS(C)::R(A),XQ(b)
      • Q(b);N_PINS(C),XS(E)::R(A)+S(C)
      • Q(b);N_PINS(C),XS(F)::R(A)+S(C)
      • Q(b);N_PINS(C)::R(A)+S(C)
      • Q(b);N_PINS(C)::R(A)+S(C),XQ(b)
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).