MESON Chess Problem Database

Problem Display
PID: 276538 (3n3b/3rB3/R7/1p1kpp2/p1N1N3/2PKP3/Q7/n2R4 w - - 0 1)

Moutecidis, Pavlos

To Mat, 1955

3n3b/3rB3/R7/1p1kpp2/p1N1N3/2PKP3/Q7/n2R4

#2

9 + 9

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Rxd6#
    • 1...Ra7
      • 2.Rd6#
    • 1...Rb7
      • 2.Rd6#
    • 1...Rc7
      • 2.Rd6#
    • 1...Rxe7
      • 2.Rd6#
    • 1...Bf6
      • 2.Sxf6#
    • 1...Sc2
      • 2.Sb2#
      • 2.Scd2#
      • 2.Sa3#
      • 2.Sa5#
      • 2.Scd6#
    • 1...Sc6
      • 2.Sb6#
    • 1...bxc4+
      • 2.Qxc4#
    • 1...fxe4+
      • 2.Ke2#
  • Keys
    • 1.Qg2!
      • threat
        • 2.Sf6#
      • 1...bxc4+
        • 2.Ke2#
      • 1...fxe4+
        • 2.Qxe4#
      • 1...Rxe7
        • 2.Rd6#
      • 1...Rd6
        • 2.Rxd6#
      • 1...Sc6
        • 2.Qg8#
      • 1...Bf6
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(g);N_GUARD::R1(H),XR(g)
    • R(g);N_GUARD::R1(H)
    • R(g);N_GUARD,XB(I)::R1(H)
    • B(i);N_GUARD::S(G),XB(i)
    • S(h);SBLOCK::QAB(B)+S(F),DCHECK
    • P(c);CHECK,OGATE,P_SPINP(c),XS(F)::QAB1(B),XP(c)
    • P(f);CHECK,SBLOCK,XS(G)::R(A)+K(D)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)+S(G),DCHECK
    • Vars
      • P(c);CHECK,SBLOCK,XS(F)::R(A)+K(D)
      • P(f);CHECK,OGATE,P_SPINP(f),XS(G)::QAB1(B),XP(f)
      • R(g);N_GUARD,XB(I)::R1(H)
      • R(g);N_GUARD::R1(H),XR(g)
      • S(h);N_GUARD::QAB(B)
      • B(i);::QAB(B)+S(G),DCHECK,XB(i)
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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).