MESON Chess Problem Database

Problem Display
PID: 198288 (5BK1/6pB/8/8/P1k3N1/1N3Q2/pbr3r1/2n1R3 w - - 0 1)

Bermudez, Rafael J

Rivista del Club Argentino de Ajedrez, 1920

5BK1/6pB/8/8/P1k3N1/1N3Q2/pbr3r1/2n1R3

#2

8 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qf7#
    • 1...Ba3
      • 2.Se5#
    • 1...Bc3
      • 2.Qf7#
    • 1...Bd4
      • 2.Sa5#
    • 1...Be5
      • 2.Sxe5#
    • 1...Se2
      • 2.Qd3#
    • 1...Sxb3
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
  • Tries
    • 1.Bxc2?
      • threat
        • 2.Qc6#
      • 1...Sxb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Ba3
        • 2.Se5#
      • 1...Bd4
        • 2.Sa5#
      • 1...Rxc2!
    • 1.Re4+?
      • 1...Bd4
        • 2.Rxd4#
      • 1...Kd5!
    • 1.Qe4+?
      • 1...Kxb3
        • 2.Qb4#
      • 1...Kc3
        • 2.Qb4#
      • 1...Bd4!
    • 1.Qf4+?
      • 1...Kxb3
        • 2.Qb4#
      • 1...Kc3
        • 2.Qb4#
      • 1...Kd5
        • 2.Qe4#
      • 1...Bd4!
  • Keys
    • 1.Re8!
      • threat
        • 2.Rc8#
      • 1...Sxb3
        • 2.Qd3#
      • 1...Rc3
        • 2.Qf7#
      • 1...Bc3
        • 2.Qf7#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Ba3
        • 2.Se5#
      • 1...Bd4
        • 2.Sa5#
      • 1...Be5
        • 2.Sxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(d);SBLOCK::QAB(C)
    • B(c);N_GUARD::S(E)
    • B(c);SBLOCK::QAB(C)
    • B(c);SBLOCK::S(B)
    • B(c);N_GUARD::S(E),XB(c)
    • S(a);N_GUARD::QAB1(C)
    • S(a);N_GUARD,XS(B)::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
  • Tries
    • Try
      • B(F);XR(d)
      • Threat
        • QAR2(C)
      • Vars
        • S(a);N_GUARD,XS(B)::QAB1(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • B(c);N_GUARD::S(E)
        • B(c);SBLOCK::S(B)
      • Refutation
        • R(e);XB(F)
    • Try
      • R(A);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::R1(A),XB(c)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);OGATE,S_FLIGHT,XS(B)::QAR1(C)
        • K(f);OGATE,P-FLIGHT::QAB1(C)
      • Refutation
        • B(c);P_SPINB(c)
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);OGATE,S_FLIGHT,XS(B)::QAR1(C)
        • K(f);OGATE,P-FLIGHT::QAB1(C)
        • K(f);S_FLIGHT::QAB1(C)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • R(A);
    • Threat
      • R(A)
    • Vars
      • S(a);N_GUARD,XS(B)::QAB1(C)
      • R(d);SBLOCK::QAB(C)
      • B(c);SBLOCK::QAB(C)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • B(c);N_GUARD::S(E)
      • B(c);SBLOCK::S(B)
      • B(c);N_GUARD::S(E),XB(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).