MESON Chess Problem Database

Problem Display
PID: 70847 (2R5/1B6/8/3p4/2r3Q1/B2p4/K1kb1qNR/1N6 w - - 0 1)

Leites, Samuil Davidovich

Loshinski, Lev Ilich

Umnov, Evgeny Ivanovich

3rd Prize, Nepszava, 1930

2R5/1B6/8/3p4/2r3Q1/B2p4/K1kb1qNR/1N6

#2

8 + 6

35 L'Italia Scacchistica 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Sxe1#
    • 1...Qe3
      • 2.Sxe3#
    • 1...Qd4
      • 2.Se1#
    • 1...Qh4
      • 2.Se3#
    • 1...Qc5
      • 2.Se1#
    • 1...Qb6
      • 2.Se1#
    • 1...Qa7
      • 2.Se1#
    • 1...Qf1
      • 2.Se3#
    • 1...Qf4
      • 2.Se1#
    • 1...Qf5
      • 2.Se1#
      • 2.Se3#
    • 1...Qf6
      • 2.Se1#
      • 2.Se3#
    • 1...Qf7
      • 2.Se1#
      • 2.Se3#
    • 1...Qf8
      • 2.Se1#
      • 2.Se3#
    • 1...Rc3
      • 2.Qa4#
    • 1...Rc5
      • 2.Qa4#
    • 1...Rc6
      • 2.Qa4#
    • 1...Rc7
      • 2.Qa4#
    • 1...Rxc8
      • 2.Qa4#
    • 1...Bc1
      • 2.Se1#
    • 1...Be1
      • 2.Sxe1#
      • 2.Se3#
    • 1...Bc3
      • 2.Se3#
    • 1...Be3
      • 2.Se1#
      • 2.Sxe3#
    • 1...Bb4
      • 2.Se3#
    • 1...Bf4
      • 2.Se1#
    • 1...Ba5
      • 2.Se3#
    • 1...Bg5
      • 2.Se1#
    • 1...Bh6
      • 2.Se1#
  • Tries
    • 1.Rxc4+?
      • 1...Bc3
        • 2.Se1#
        • 2.Se3#
        • 2.Rxc3#
      • 1...dxc4!
  • Keys
    • 1.Bc6!
      • threat
        • 2.Ba4#
      • 1...Rxc6
        • 2.Qa4#
      • 1...Qc5
        • 2.Se1#
      • 1...Qb6
        • 2.Se1#
      • 1...Qa7
        • 2.Se1#
      • 1...Ra4
        • 2.Bxa4#
        • 2.Qxa4#
      • 1...Bc3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 16
  • Sets
    • Q(c);N_GUARD,S_CUTB(b)::S(C),XQ(c)
    • Q(c);N_GUARD,S_CUTB(b)::S(C)
    • Q(c);N_GUARD,N_SPINR(e),S_CUTB(b)::S(C)
    • Q(c);N_GUARD,P_PINB(E),S_CUTB(b)::S(C)
    • R(e);OGATE::QAB(F)
    • R(e);N_SPINR(e),OGATE,XR(H)::QAB(F)
    • B(b);N_GUARD,S_CUTQ(c)::S(C)
    • B(b);N_GUARD,N_SPINR(e),S_CUTQ(c)::S(C)
  • Tries
    • Try
      • R(H);CHECK,XR(e)
      • Refutation
        • P(f);XR(H)
  • Actual
    • B(G);N_PINR(e)
    • Threat
      • B(G)
    • Vars
      • R(e);OGATE,P_SPINR(e),XB(G)::QAB(F)
      • Q(c);N_GUARD,S_CUTB(b)::S(C)
      • Q(c);N_GUARD,P_PINB(E),S_CUTB(b)::S(C)
      • B(b);N_GUARD,S_CUTQ(c)::S(C)
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).