MESON Chess Problem Database

Problem Display
PID: 184356 (4r2B/8/5rN1/2R5/p3k3/4p3/2N1P1n1/K1Q5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Hannoversche Allgemeine Zeitung, 2000

(First published on Sat Jul 22 2000)

4r2B/8/5rN1/2R5/p3k3/4p3/2N1P1n1/K1Q5

#2

7 + 6

15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Rxe5#
    • 1...Ra8
      • 2.Re5#
    • 1...Rb8
      • 2.Re5#
    • 1...Rc8
      • 2.Re5#
    • 1...Rd8
      • 2.Re5#
    • 1...Rf8
      • 2.Re5#
    • 1...Rg8
      • 2.Re5#
    • 1...Rxh8
      • 2.Re5#
    • 1...Se1
      • 2.Qxe3#
    • 1...Sf4
      • 2.Qxe3#
    • 1...Sh4
      • 2.Qxe3#
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qb4#
      • 1...Re5
        • 2.Rxe5#
      • 1...Rf1
        • 2.Se1#
      • 1...Rb6
        • 2.Sb4#
      • 1...Rd6
        • 2.Sd4#
      • 1...Rb8
        • 2.Re5#
      • 1...Rd8
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • R(f);N_GUARD::R1(E),XR(f)
    • R(f);N_GUARD::R1(E)
    • R(f);N_GUARD,XB(G)::R1(E)
    • S(a);N_GUARD::QAR1(B),XP(b)
  • Actual
    • Q(B);
    • Threat
      • QAR(B)
    • Vars
      • R(f);N_GUARD::R1(E),XR(f)
      • R(e);P_PINQ(B)::QAB(B)+S(C)
      • R(e);::QAB(B)+S(C)
      • R(f);N_GUARD::R1(E)
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