MESON Chess Problem Database

Problem Display
PID: 235286 (B1rR4/2Pb1r2/1B6/2RPb1N1/1p1k1p2/q1pN4/4PK2/n7 w - - 0 1)

Hoffmann, Fritz

Schach, 1981

B1rR4/2Pb1r2/1B6/2RPb1N1/1p1k1p2/q1pN4/4PK2/n7

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc7
      • 2.Rxc7#
    • 1...Bxc7
      • 2.Rxc7#
    • 1...Bh3
      • 2.Rc6#
    • 1...Ba4
      • 2.Rc6#
    • 1...Bg4
      • 2.Rc6#
    • 1...Bb5
      • 2.Rc6#
    • 1...Bf5
      • 2.Rc6#
    • 1...Bc6
      • 2.Rxc6#
    • 1...Be6
      • 2.Rc6#
    • 1...Be8
      • 2.Rc6#
    • 1...c2
      • 2.Rxc2#
  • Keys
    • 1.Se1!
      • threat
        • 2.Sef3#
      • 1...Bg4
        • 2.Rc6#
      • 1...c2
        • 2.Rxc2#
      • 1...f3
        • 2.e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(j);OGATE,XP(H)::B(G)+R(D),XR(j)
    • B(g);OGATE,XP(H)::B(G)+R(D),XB(g)
    • B(h);::B(G)+R(D)
    • B(h);::B(G)+R(D),XB(h)
    • P(c);OGATE::B(G)+R(D),XP(c)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • B(h);::B(G)+R(D)
      • P(c);OGATE::B(G)+R(D),XP(c)
      • P(f);N_GUARD::P(A)
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