MESON Chess Problem Database

Problem Display
PID: 81821 (3r2R1/Q4Pn1/4p2B/4P2B/n2p4/N4K2/Rp1P4/2k5 w - - 0 1)

Pabst, Alfred

Augsburger Allgemeine Zeitung, 1994

3r2R1/Q4Pn1/4p2B/4P2B/n2p4/N4K2/Rp1P4/2k5

#2

10 + 7

6114 Problemschach-Jahrbuch (1994) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Rg1#
    • 1...Sxh5
      • 2.Rg1#
    • 1...Se8
      • 2.Rg1#
    • 1...d3
      • 2.Qg1#
  • Tries
    • 1.Ke2?
      • threat
        • 2.d3#
      • 1...Sc3+
        • 2.dxc3#
      • 1...Sxh5
        • 2.Rg1#
      • 1...b1S
        • 2.Rc2#
      • 1...Sf5
        • 2.Rg1#
      • 1...d3+!
    • 1.Kf2?
      • threat
        • 2.d3#
      • 1...Sxh5
        • 2.Rg1#
      • 1...b1S
        • 2.Rc2#
      • 1...Sf5
        • 2.Rg1#
      • 1...d3!
    • 1.Qxd4?
      • threat
        • 2.Qg1#
      • 1...Kd1
        • 2.Qg1#
      • 1...Sc3
        • 2.dxc3#
      • 1...Rxd4!
    • 1.Qxa4?
      • threat
        • 2.Qc2#
        • 2.d3#
      • 1...Sxh5
        • 2.Rg1#
        • 2.Qc2#
      • 1...b1Q
        • 2.d3#
      • 1...b1S
        • 2.Qc2#
      • 1...b1B
        • 2.d3#
      • 1...Rc8
        • 2.Rxc8#
        • 2.d3#
      • 1...Sf5
        • 2.Rg1#
        • 2.Qc2#
      • 1...d3!
  • Keys
    • 1.Ke4!
      • threat
        • 2.d3#
      • 1...Sc3+
        • 2.dxc3#
      • 1...Sc5+
        • 2.Qxc5#
      • 1...Sxh5
        • 2.Rg1#
      • 1...b1S
        • 2.Rc2#
      • 1...Sf5
        • 2.Rg1#
      • 1...d3
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(f);OGATE::R(J)
    • S(f);OGATE,XB(F)::R(J)
    • P(d);OGATE::QAR(H)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • B(G)+P(B)
      • Vars
        • S(c);CHECK,OGATE::B(G)+P(B),XS(c)
        • S(f);OGATE,XB(F)::R(J)
        • P(b);OGATE::R1(A)
        • S(f);OGATE::R(J)
      • Refutation
        • P(d);CHECK
    • Try
      • K(D);P-FLIGHT
      • Threat
        • B(G)+P(B)
      • Vars
        • S(f);OGATE,XB(F)::R(J)
        • P(b);OGATE::R1(A)
        • S(f);OGATE::R(J)
      • Refutation
        • P(d);
    • Try
      • Q(H);XP(d)
      • Threat
        • QAR(H)
      • Vars
        • K(a);P-FLIGHT::QAR(H)
        • S(c);OGATE::B(G)+P(B),XS(c)
      • Refutation
        • R(g);XQ(H)
    • Try
      • Q(H);XS(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::B(G)+P(B)
        • P(b);::QAR1(H)
      • Refutation
        • P(d);
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • B(G)+P(B)
    • Vars
      • S(c);CHECK,OGATE::B(G)+P(B),XS(c)
      • S(c);CHECK,N_GUARD::QAR(H),XS(c)
      • S(f);OGATE,XB(F)::R(J)
      • P(b);OGATE::R1(A)
      • S(f);OGATE::R(J)
      • P(d);OGATE::QAR(H)
HTML5 logo

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).