MESON Chess Problem Database

Problem Display
PID: 160843 (1R3bB1/7r/7q/P5n1/ppN4r/Pk6/2RB4/1K1n4 w - - 0 1)

Albrecht, Hermann

Christian Science Monitor, 1948

(First published on Sat Jun 26 1948)

1R3bB1/7r/7q/P5n1/ppN4r/Pk6/2RB4/1K1n4

#2

8 + 9

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Rxb4#
    • 1...Bg7
      • 2.Rxb4#
    • 1...Sb2
      • 2.Rxb2#
      • 2.Rc3#
    • 1...Sf2
      • 2.Rb2#
      • 2.Rc3#
    • 1...Sc3+
      • 2.Rxc3#
    • 1...Se3
      • 2.Rb2#
      • 2.Rc3#
  • Keys
    • 1.Bxb4!
      • threat
        • 2.Sd2#
      • 1...Sc3+
        • 2.Rxc3#
      • 1...Rxc4
        • 2.Bxc4#
      • 1...Bxb4
        • 2.Rxb4#
      • 1...Se6
        • 2.Be7#
      • 1...Sf7
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(h);S_CUTB(i)::R1(G),XP(d)
    • B(i);N_GUARD::R1(G),XP(d)
    • S(a);CHECK,N_GUARD::R1(B),XS(a)
  • Actual
    • B(C);XP(d)
    • Threat
      • B(H)+S(E),DCHECK
    • Vars
      • S(a);CHECK,N_GUARD::R1(B),XS(a)
      • R(e);OGATE,P_SPINR(e),XS(E)::B(H),XR(e)
      • B(i);OGATE,P_SPINB(i),XB(C)::R1(G),XB(i)
      • S(f);S_CUTQ(g)::R(G)+B(C)
      • S(f);S_CUTR(h)::R(G)+B(C)
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