MESON Chess Problem Database

Problem Display
PID: 251376 (3bQr2/3R3B/1p2r1N1/q3N3/2bpkpP1/7R/1P3P1K/8 w - - 0 1)

Tuhan-Baranowski, Leon

Die Schwalbe, 1930

3bQr2/3R3B/1p2r1N1/q3N3/2bpkpP1/7R/1P3P1K/8

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Sxf8#
  • Tries
    • 1.Sxf8+?
      • 1...Rg6
        • 2.Bxg6#
      • 1...Kxe5!
    • 1.Re3+?
      • 1...dxe3
        • 2.f3#
      • 1...fxe3!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Rxd4#
      • 1...Kd3
        • 2.Sxf4#
      • 1...Qd2
        • 2.Sxd2#
        • 2.Sxf8#
      • 1...Qc3
        • 2.Sxf8#
      • 1...Qc5
        • 2.Sd2#
      • 1...Qd5
        • 2.Sd2#
      • 1...Qe5
        • 2.Sd2#
      • 1...Bd5
        • 2.Sxf8#
      • 1...Bf6
        • 2.Sge5#
      • 1...d3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • R(g);N_GUARD,P_SPINR(g),XS(F)::B(I)+S(G),XR(i)
  • Tries
    • Try
      • S(G);CHECK,XR(i)
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::B(I),XR(g)
      • Refutation
        • K(c);P-FLIGHT,P_SPINR(g),XS(F)
    • Try
      • R(D);CHECK
      • Vars
        • P(b);SBLOCK,XR(D)::P(B)
      • Refutation
        • P(d);XR(D)
  • Actual
    • S(F);P_PINR(g)
    • Threat
      • R1(H),XP(b)
    • Vars
      • K(c);N_GUARD,N_SPINR(g),P_SPINP(b),S_FLIGHT::B(I)+S(G),DCHECK,XP(d)
      • Q(e);N_GUARD::B(I)+S(G),XR(i)
      • Q(e);N_GUARD::S(F)
      • Q(e);N_GUARD,N_SPINR(g)::S(F)
      • B(a);S_CUTQ(e)::B(I)+S(G),XR(i)
      • B(h);S_CUTR(i)::B(I)+S(G)
      • P(b);::R1(H)
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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).