MESON Chess Problem Database

Problem Display
PID: 107593 (6bb/1r1n1p2/2B5/2pR1P2/Ppk1n3/R2NP3/1P2P3/K6Q w - - 0 1)

Arguelles Ferrer, Antonio Fernandez

La Nau, 1929

6bb/1r1n1p2/2B5/2pR1P2/Ppk1n3/R2NP3/1P2P3/K6Q

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb2+
      • 2.Sxb2#
    • 1...Sc3
      • 2.b3#
    • 1...Sef6
      • 2.Qc1#
    • 1...Se5
      • 2.Qxe4#
    • 1...Sdf6
      • 2.Se5#
    • 1...f6
      • 2.Qxe4#
  • Tries
    • 1.Se5+?
      • 1...Sxe5
        • 2.Qxe4#
      • 1...Bxe5!
    • 1.Rxc5+?
      • 1...Sexc5
        • 2.Bd5#
        • 2.Qd5#
      • 1...Sdxc5!
    • 1.Rxd7?
      • threat
        • 2.Bd5#
      • 1...Bxb2+
        • 2.Sxb2#
      • 1...Sc3
        • 2.b3#
      • 1...Sf6
        • 2.Se5#
        • 2.Qc1#
      • 1...f6
        • 2.Qxe4#
      • 1...Rxd7!
    • 1.Qc1+?
      • 1...Sc3
        • 2.b3#
      • 1...Bc3!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Bd5#
      • 1...Bxb2+
        • 2.Sxb2#
      • 1...Sc3
        • 2.b3#
      • 1...Sef6
        • 2.Qc1#
      • 1...Sb6
        • 2.Bb5#
      • 1...Sdf6
        • 2.Se5#
      • 1...f6
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(i);CHECK,XP(C)::S(F),XB(i)
    • S(c);N_PINP(C),SBLOCK::P(C)
    • S(c);N_GUARD,N_PINP(C),S_CUTB(i)::QAR(B)
    • S(f);N_PINP(C),S_CUTB(i)::QAR2(B),XS(c)
    • S(f);N_GUARD,N_PINP(C),S_CUTB(i)::S(F)
    • P(g);N_PINP(C),S_CUTB(i)::QAR2(B),XS(c)
  • Tries
    • Try
      • S(F);CHECK,N_SPINP(C)
      • Vars
        • S(f);XS(F)::QAR2(B),XS(c)
      • Refutation
        • B(i);P_PINP(C),XS(F)
    • Try
      • R(I);CHECK,XP(d)
      • Refutation
        • S(f);XR(I)
    • Try
      • R(I);XS(f)
      • Threat
        • B(K)
      • Vars
        • B(i);CHECK,XP(C)::S(F),XB(i)
        • S(c);N_PINP(C),SBLOCK::P(C)
        • P(g);N_PINP(C),S_CUTB(i)::QAR2(B),XS(c)
      • Refutation
        • R(e);XR(I)
    • Try
      • Q(B);CHECK
      • Vars
        • S(c);N_PINP(C),P_SPINS(c)::P(C)
      • Refutation
        • B(i);P_SPINB(i)
  • Actual
    • R(I);
    • Threat
      • B(K)
    • Vars
      • B(i);CHECK,XP(C)::S(F),XB(i)
      • S(c);N_PINP(C),SBLOCK::P(C)
      • S(c);N_GUARD,N_PINP(C),S_CUTB(i)::QAR(B)
      • S(f);S_CUTR(e)::B(K)
      • S(f);N_GUARD,N_PINP(C),S_CUTB(i)::S(F)
      • P(g);N_PINP(C),S_CUTB(i)::QAR2(B),XS(c)
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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).