MESON Chess Problem Database

Problem Display
PID: 207817 (q7/8/1pPN4/kP1p4/3NP3/K7/1B2n3/2n5 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1987

q7/8/1pPN4/kP1p4/3NP3/K7/1B2n3/2n5

#2

7 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc6
      • 2.Sxc6#
    • 1...Qb7
      • 2.Sxb7#
    • 1...Qd8
      • 2.Sb7#
    • 1...Qe8
      • 2.Sb7#
    • 1...Qg8
      • 2.Sb7#
    • 1...Qh8
      • 2.Sb7#
    • 1...Sa2
      • 2.Sb3#
    • 1...Sb3
      • 2.Sxb3#
    • 1...Sd3
      • 2.Sb3#
    • 1...Sg1
      • 2.Bc3#
    • 1...Sc3
      • 2.Bxc3#
    • 1...Sg3
      • 2.Bc3#
    • 1...Sxd4
      • 2.Bc3#
    • 1...Sf4
      • 2.Bc3#
    • 1...dxe4
      • 2.Sc4#
  • Tries
    • 1.Bxc1?
      • threat
        • 2.Sb3#
      • 1...Sxd4
        • 2.Bd2#
      • 1...Sxc1!
    • 1.exd5?
      • threat
        • 2.Sc4#
      • 1...Qxc6
        • 2.Sxc6#
      • 1...Sxd4
        • 2.Bc3#
      • 1...Qf8!
  • Keys
    • 1.c7!
      • 1...Sxd4
        • 2.Bc3#
      • 1...dxe4
        • 2.Sc4#
      • 1...Qa6
        • 2.Sc6#
      • 1...Qc6
        • 2.Sxc6#
      • 1...Qb7
        • 2.Sxb7#
      • 1...Qa7
        • 2.Sc6#
      • 1...Qb8
        • 2.Sc6#
      • 1...Qc8
        • 2.Sc6#
      • 1...Qd8
        • 2.Sc6#
        • 2.Sb7#
      • 1...Qe8
        • 2.Sb7#
      • 1...Qf8
        • 2.Sc6#
      • 1...Qg8
        • 2.Sc6#
        • 2.Sb7#
      • 1...Qh8
        • 2.Sc6#
        • 2.Sb7#
      • 1...Sa2
        • 2.Sb3#
      • 1...Sb3
        • 2.Sxb3#
      • 1...Sd3
        • 2.Sb3#
      • 1...Sg1
        • 2.Bc3#
      • 1...Sc3
        • 2.Bxc3#
      • 1...Sg3
        • 2.Bc3#
      • 1...Sf4
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • Q(f);XP(F)::S(C),XQ(f)
    • Q(f);N_GUARD::S(G),XQ(f)
    • Q(f);N_GUARD::S(G)
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • S(b);N_GUARD::B(A)
    • S(b);N_GUARD::B(A),XS(b)
    • S(b);N_GUARD,XS(C)::B(A)
    • P(d);N_GUARD,XP(D)::S(G)
  • Tries
    • Try
      • B(A);XS(a)
      • Threat
        • S(C)
      • Vars
        • S(b);N_GUARD,XS(C)::B(A)
      • Refutation
        • S(b);XB(A)
    • Try
      • P(D);XP(d)
      • Threat
        • S(G)
      • Vars
        • Q(f);XP(F)::S(C),XQ(f)
        • S(b);N_GUARD,XS(C)::B(A)
      • Refutation
        • Q(f);P_PINS(G)
  • Actual
    • P(F);
    • Vars
      • S(b);N_GUARD,XS(C)::B(A)
      • P(d);N_GUARD,XP(D)::S(G)
      • Q(f);N_GUARD::S(C)
      • Q(f);N_GUARD::S(C),XQ(f)
      • Q(f);N_GUARD::S(G),XQ(f)
      • Q(f);N_GUARD::S(G)
      • Q(f);N_GUARD,P_PINS(G)::S(C)
      • S(a);N_GUARD::S(C)
      • S(a);N_GUARD::S(C),XS(a)
      • S(b);N_GUARD::B(A)
      • S(b);N_GUARD::B(A),XS(b)
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