MESON Chess Problem Database

Problem Display
PID: 71379 (b5B1/4p3/1p2R3/3k3K/1P1n1Pp1/1P2pP2/3P4/2R4Q w - - 0 1)

Milewski, Stefan

Probleemblad, 2006

b5B1/4p3/1p2R3/3k3K/1P1n1Pp1/1P2pP2/3P4/2R4Q

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Rc5#
  • Tries
    • 1.Rxb6+?
      • 1...e6
        • 2.Rc5#
      • 1...Se6!
    • 1.Rxe7+?
      • 1...Se6
        • 2.Rd7#
      • 1...Kd6!
  • Keys
    • 1.dxe3!
      • threat
        • 2.e4#
      • 1...Sxb3
        • 2.fxg4#
      • 1...Sxf3
        • 2.Rd1#
      • 1...Sxe6
        • 2.Qd1#
      • 1...Sc2
        • 2.fxg4#
      • 1...Se2
        • 2.fxg4#
      • 1...Sb5
        • 2.fxg4#
      • 1...Sf5
        • 2.fxg4#
      • 1...Sc6
        • 2.fxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • P(e);N_GUARD::R1(A)
  • Tries
    • Try
      • R(I);CHECK,XP(e)
      • Vars
        • P(f);P_SPINP(f)::R1(A)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • R(I);CHECK,XP(f)
      • Vars
        • S(b);P_SPINS(b)::R(I)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • P(C);XP(a)
    • Threat
      • P(C)
    • Vars
      • S(b);N_GUARD,XP(D)::QAB(B)+P(E),XP(c)
      • S(b);OGATEB,P_SPINS(b),XP(E)::R(A)
      • S(b);OGATEB,P_SPINS(b),XR(I)::QAR(B)
      • S(b);N_GUARD::QAB(B)+P(E),XP(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).