MESON Chess Problem Database

Problem Display
PID: 234934 (6b1/n1Br2Nn/6R1/3k2b1/2RPp3/1K5B/8/8 w - - 0 1)

Hoffmann, Fritz

Freie Presse, 1967

6b1/n1Br2Nn/6R1/3k2b1/2RPp3/1K5B/8/8

#2

7 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Rxd6#
    • 1...Re7
      • 2.Rd6#
    • 1...Rf7
      • 2.Be6#
      • 2.Rd6#
    • 1...Rxg7
      • 2.Rd6#
    • 1...Be6
      • 2.Bxe6#
    • 1...Sf6
      • 2.Rxg5#
    • 1...Sf8
      • 2.Rxg5#
    • 1...e3
      • 2.Bg2#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Rc5#
      • 1...Rxc7
        • 2.Rd6#
      • 1...Bf6
        • 2.Se3#
      • 1...e3
        • 2.Bg2#
      • 1...Be7
        • 2.Se3#
      • 1...Sf6!
  • Keys
    • 1.Se6!
      • threat
        • 2.Rc5#
      • 1...Rxc7
        • 2.Sxc7#
      • 1...Bxe6
        • 2.Bxe6#
      • 1...e3
        • 2.Bg2#
      • 1...Be7
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(e);N_GUARD::R1(E),XR(e)
    • R(e);N_GUARD::R1(E)
    • R(e);N_GUARD,XS(G)::R1(E)
    • B(g);N_GUARD::B(B),XB(g)
    • S(f);N_GUARD::R(E),XB(c)
    • P(a);OGATEB::B(B)
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(C)
      • Vars
        • R(e);N_GUARD,XB(F)::R1(E)
        • B(c);N_GUARD::S(G)
        • P(a);OGATEB::B(B)
      • Refutation
        • S(f);
  • Actual
    • S(G);
    • Threat
      • R1(C)
    • Vars
      • R(e);XB(F)::S(G),XR(e)
      • B(g);OGATE,XS(G)::B(B),XB(g)
      • P(a);OGATEB::B(B)
      • B(c);N_GUARD::S(G)
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