MESON Chess Problem Database

Problem Display
PID: 245739 (7b/B2n3Q/1n4p1/r1r3N1/p2k4/N6R/1Pb1P3/K6B w - - 0 1)

Wrobel, Marian

Revista Romana de Sah, 1926

7b/B2n3Q/1n4p1/r1r3N1/p2k4/N6R/1Pb1P3/K6B

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Se6#
    • 1...Se5
      • 2.Se6#
  • Tries
    • 1.Qh4+?
      • 1...Be4
        • 2.Qxe4#
      • 1...Ke5!
    • 1.Qxh8+?
      • 1...Re5
        • 2.Se6#
      • 1...Se5
        • 2.Se6#
      • 1...Sf6!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qe3#
      • 1...Be4
        • 2.Qxe4#
      • 1...Rc3
        • 2.bxc3#
      • 1...Re5
        • 2.Qb4#
      • 1...Be5
        • 2.Se6#
      • 1...Sc4
        • 2.Sxc2#
      • 1...Sd5
        • 2.Sf3#
      • 1...Se5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(i);SBLOCK::S(G)
    • S(h);SBLOCK::S(G)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR1(I),XB(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);CHECK,XB(i)
      • Vars
        • R(e);P_SPINR(e),P_SPINS(f)::S(G)
        • S(h);P_SPINS(h)::S(G)
      • Refutation
        • S(h);P_SPINS(h)
  • Actual
    • Q(I);
    • Threat
      • QAB1(I)
    • Vars
      • B(a);N_GUARD::QAR1(I),XB(a)
      • R(e);OGATE,P_SPINS(f)::P(C),XR(e)
      • R(e);OGATE,P_SPINS(f),SBLOCK::QAR2(I)
      • B(i);SBLOCK::S(G)
      • S(f);P_SPINR(e),SBLOCK::S(E),XB(a)
      • S(f);P_SPINR(e),SBLOCK::S(G)
      • S(h);SBLOCK::S(G)
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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).