MESON Chess Problem Database

Problem Display
PID: 277093 (B1r3N1/p5NK/3kPp2/2R5/3qp3/B7/8/3Q2b1 w - - 0 1)

Ellerman, Arnoldo

To Mat, 1959

B1r3N1/p5NK/3kPp2/2R5/3qp3/B7/8/3Q2b1

#2

8 + 7

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Qxd5#
    • 1...Rc7
      • 2.Rd5#
    • 1...Bh2
      • 2.Qxd4#
    • 1...e3
      • 2.Qxd4#
  • Keys
    • 1.Qb3!
      • threat
        • 2.Sf5#
      • 1...Qxc5
        • 2.Qg3#
      • 1...Rxc5
        • 2.Qb8#
      • 1...Qb4
        • 2.Qd5#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Rc6
        • 2.Se8#
      • 1...Qf2
        • 2.Qd5#
      • 1...Qe5
        • 2.Rc6#
      • 1...Qc4
        • 2.Qg3#
      • 1...Rc7
        • 2.Rd5#
      • 1...f5
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • Q(b);OGATE::QAR1(A),XQ(b)
    • R(g);P_PINS(E),SBLOCK::B(B)+R(C),DCHECK
    • B(a);N_GUARD::QAR2(A),XQ(b)
    • P(c);S_CUTB(a)::QAR2(A),XQ(b)
  • Actual
    • Q(A);N_PINQ(b)
    • Threat
      • S(E)
    • Vars
      • Q(b);N_GUARD,P_SPINQ(b),XR(C)::QAB(A)
      • R(g);N_GUARD,P_SPINR(g),XR(C)::QAB(A)
      • Q(b);N_GUARD::QAR1(A)
      • Q(b);N_GUARD::QAR1(A),XQ(b)
      • R(g);N_GUARD::S(E)
      • Q(b);SBLOCK::B(B)+R(C),DCHECK
      • Q(b);N_GUARD::QAB(A)
      • R(g);P_PINS(E),SBLOCK::B(B)+R(C),DCHECK
      • P(e);::S(E),XP(e)
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).