MESON Chess Problem Database

Problem Display
PID: 161247 (3K4/2pNp3/3k4/pP1P2p1/1r3r2/QB6/1N5B/7R w - - 0 1)

Ahues, Herbert Siegfried Oskar

Scacco!, 1978

3K4/2pNp3/3k4/pP1P2p1/1r3r2/QB6/1N5B/7R

#2

9 + 7

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Bxf4+?
      • 1...e5
        • 2.Bxe5#
        • 2.Rh6#
      • 1...gxf4!
    • 1.Rc1?
      • threat
        • 2.Rc6#
      • 1...c6
        • 2.Rxc6#
      • 1...c5!
    • 1.Re1?
      • threat
        • 2.Re6#
      • 1...e6
        • 2.Rxe6#
      • 1...e5!
    • 1.Qxb4+?
      • 1...c5
        • 2.Qxc5#
      • 1...axb4!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Sc4#
      • 1...c5
        • 2.dxc5 ep#
      • 1...e5
        • 2.dxe5 ep#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK,XR(b)
      • Refutation
        • P(d);XB(C)
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • P(f);::R1(A),XP(f)
      • Refutation
        • P(f);N_SPINR(a),P_SPINR(b)
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • P(g);::R1(A),XP(g)
      • Refutation
        • P(g);
    • Try
      • Q(D);CHECK,P_PINR(b),XR(a)
      • Vars
        • P(f);P_SPINP(f)::QAB1(D),XP(f)
      • Refutation
        • P(c);XQ(D)
  • Actual
    • R(A);
    • Threat
      • S(B)
    • Vars
      • P(f);N_SPINR(a),OGATE,P_SPINR(b)::R(A)+P(G),XP(f),EP
      • P(g);OGATE::R(A)+P(G),XP(g),EP
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).