MESON Chess Problem Database

Problem Display
PID: 249576 (8/8/1n6/KBk1pN2/1R2P3/1p1p4/bPPP4/2N1n3 w - - 0 1)

Aschemann, Ralf

Deutsche Schachzeitung, 1978

8/8/1n6/KBk1pN2/1R2P3/1p1p4/bPPP4/2N1n3

#2

9 + 7

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Sxb3#
    • 1...Sxc2
      • 2.Sxd3#
    • 1...Sg2
      • 2.Sxd3#
    • 1...Sf3
      • 2.Sxd3#
    • 1...Sa4
      • 2.Rc4#
    • 1...Sc4+
      • 2.Rxc4#
    • 1...Sd5
      • 2.Rc4#
    • 1...Sd7
      • 2.Rc4#
    • 1...Sa8
      • 2.Rc4#
    • 1...Sc8
      • 2.Rc4#
  • Tries
    • 1.cxb3?
      • 1...Sc4+
        • 2.Rxc4#
      • 1...Bxb3
        • 2.Sxb3#
      • 1...Sc2
        • 2.Sxd3#
      • 1...Sg2
        • 2.Sxd3#
      • 1...Sf3
        • 2.Sxd3#
      • 1...Sa4
        • 2.Rc4#
      • 1...Sd5
        • 2.Rc4#
      • 1...Sd7
        • 2.Rc4#
      • 1...Sa8
        • 2.Rc4#
      • 1...Sc8
        • 2.Rc4#
      • 1...Bb1!
  • Keys
    • 1.c3!
      • 1...Sc4+
        • 2.Rxc4#
      • 1...Bb1
        • 2.Sxb3#
      • 1...Sc2
        • 2.Sxd3#
      • 1...Sg2
        • 2.Sxd3#
      • 1...Sf3
        • 2.Sxd3#
      • 1...Sa4
        • 2.Rc4#
      • 1...Sd5
        • 2.Rc4#
      • 1...Sd7
        • 2.Rc4#
      • 1...Sa8
        • 2.Rc4#
      • 1...Sc8
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::S(A),XP(c)
    • S(a);N_GUARD,XP(C)::S(A),XP(d)
    • S(a);N_GUARD::S(A),XP(d)
    • S(g);N_GUARD::R1(E)
    • S(g);CHECK,N_GUARD::R1(E),XS(g)
  • Tries
    • Try
      • P(C);XP(c)
      • Vars
        • S(g);CHECK,N_GUARD::R1(E),XS(g)
        • B(b);XP(C)::S(A),XB(b)
        • S(a);N_GUARD::S(A),XP(d)
        • S(g);N_GUARD::R1(E)
      • Refutation
        • B(b);
  • Actual
    • P(C);
    • Vars
      • S(g);CHECK,N_GUARD::R1(E),XS(g)
      • B(b);N_GUARD::S(A),XP(c)
      • S(a);N_GUARD::S(A),XP(d)
      • S(g);N_GUARD::R1(E)
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