MESON Chess Problem Database

Problem Display
PID: 229186 (8/1pBn1p1N/RNb1kP2/1p1p4/8/4r1n1/Q4PK1/1B2R3 w - - 0 1)

Regos, Imre

Nepszava, 1926

8/1pBn1p1N/RNb1kP2/1p1p4/8/4r1n1/Q4PK1/1B2R3

#2

10 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe3+?
      • 1...Se5
        • 2.Rxe5#
      • 1...Se4!
  • Keys
    • 1.Sxd5!
      • threat
        • 2.Sg5#
      • 1...Sxf6
        • 2.Sf8#
      • 1...Re4
        • 2.Se7#
      • 1...Se4
        • 2.Sxe3#
      • 1...Sc5
        • 2.Sf8#
      • 1...Se5
        • 2.Sf8#
      • 1...Sb6
        • 2.Sf8#
      • 1...Sb8
        • 2.Sf8#
      • 1...Sf8
        • 2.Sxf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK,XR(a)
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::R1(B),XS(h)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • S(G);P_PINB(e),P_SPINS(G),XP(d)
    • Threat
      • S(J)
    • Vars
      • S(h);N_GUARD,XP(H)::S(J)
      • R(a);N_PINS(G)::QAB(C)+S(G)
      • S(b);N_PINS(G),N_SPINR(a)::QAB(C)+S(G),XR(a)
      • S(h);N_GUARD::S(J)
      • S(h);N_GUARD,N_SPINR(a)::S(J)
      • S(h);N_GUARD,N_SPINB(e)::S(J)
      • S(h);N_GUARD::S(J),XS(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).