MESON Chess Problem Database

Problem Display
PID: 86217 (3B2K1/pBN5/Pk1PN1R1/3r3R/p2p4/3P4/b1P2Q2/1r6 w - - 0 1)

Baev, Georgy S

Loshinski, Lev Ilich

The Bristol Times, 1929

3B2K1/pBN5/Pk1PN1R1/3r3R/p2p4/3P4/b1P2Q2/1r6

#2

12 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rbb5
      • 2.Sxd5#
      • 2.Sa8#
      • 2.Se8#
    • 1...Ra5
      • 2.Sb5#
      • 2.Sa8#
      • 2.Se8#
    • 1...Rdb5
      • 2.Sxb5#
      • 2.Sd5#
      • 2.Sa8#
      • 2.Se8#
    • 1...Rxd6
      • 2.Sa8#
  • Tries
    • 1.Rxd5?
      • threat
        • 2.Sb5#
        • 2.Sa8#
        • 2.Se8#
        • 2.Qxd4#
      • 1...Rb5
        • 2.Sxb5#
        • 2.Sa8#
        • 2.Se8#
        • 2.Rxb5#
      • 1...Rb4
        • 2.Sb5#
        • 2.Sa8#
        • 2.Se8#
      • 1...Bxd5!
    • 1.Qxd4+?
      • 1...Rxd4
        • 2.Sb5#
        • 2.Sa8#
        • 2.Se8#
      • 1...Rc5
        • 2.Qxc5#
      • 1...Ka5!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Sce6#
      • 1...Rc5+
        • 2.Sd5#
      • 1...Rxd6+
        • 2.Sb3#
      • 1...Ka5
        • 2.Sc6#
      • 1...Kc5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(e);P_PINS(G),XP(F)::B(K)+S(J),DCHECK
  • Tries
    • Try
      • R(D);XR(e)
      • Threat
        • DUALS(4)
      • Refutation
        • B(b);P_PINS(G),XR(D)
    • Try
      • Q(B);CHECK,XP(d)
      • Vars
        • R(e);N_GUARD,P_PINS(G),P_SPINR(e)::QAB1(B),XR(e)
      • Refutation
        • K(f);P_SPINR(e),S_FLIGHT
  • Actual
    • S(G);XP(d)
    • Threat
      • B(K)+S(J)
    • Vars
      • R(e);CHECK,SBLOCK::B(K)+S(J),DCHECK
      • R(e);CHECK,N_GUARD,P_SPINR(e),XP(F)::QAB(B)+S(G)
      • K(f);P_SPINR(e),S_FLIGHT::S(G)
      • K(f);P_SPINR(e),S_FLIGHT::QAB(B)+S(G)
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).