MESON Chess Problem Database

Problem Display
PID: 187116 (6Q1/N3R3/p1p2K2/1bNp1p2/1P1k1p2/2pP1n2/B4p2/2B3b1 w - - 0 1)

Witt, Andreas

Landeszeitung fur die Luneburger Heide, 2001

(First published on Sat Dec 15 2001)

6Q1/N3R3/p1p2K2/1bNp1p2/1P1k1p2/2pP1n2/B4p2/2B3b1

#2

9 + 11

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd3
      • 2.Sxc6#
    • 1...Bc4
      • 2.Sxc6#
    • 1...c2
      • 2.Bb2#
  • Tries
    • 1.Sxb5+?
      • 1...cxb5
        • 2.Qxd5#
      • 1...axb5!
    • 1.Bc4?
      • threat
        • 2.Sb3#
        • 2.Se6#
      • 1...Bxc4
        • 2.Sxc6#
      • 1...dxc4
        • 2.Rd7#
        • 2.Qd8#
      • 1...c2
        • 2.Bb2#
      • 1...Ba4
        • 2.Se6#
      • 1...Sg5
        • 2.Sb3#
      • 1...Sd2!
    • 1.Re4+?
      • 1...dxe4
        • 2.Qd8#
      • 1...fxe4!
    • 1.Qb8?
      • threat
        • 2.Qxf4#
      • 1...Bxd3
        • 2.Sxc6#
      • 1...c2
        • 2.Bb2#
      • 1...Sd2
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qe5#
      • 1...Bh2!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qxf4#
      • 1...Bxd3
        • 2.Sxc6#
      • 1...fxg3
        • 2.Be3#
      • 1...c2
        • 2.Bb2#
      • 1...Bh2
        • 2.Qxf2#
      • 1...Sd2
        • 2.Se6#
      • 1...Sg5
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(g);N_GUARD,XP(C)::S(G),XP(k)
    • B(g);N_GUARD::S(G),XP(k)
    • P(c);OGATEB::B(A)
  • Tries
    • Try
      • S(G);CHECK,XB(g)
      • Vars
        • P(k);XS(G)::QAR1(I),XP(h)
      • Refutation
        • P(j);XS(G)
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);N_GUARD,XB(B)::S(G),XP(k)
        • P(c);OGATEB::B(A)
        • B(g);::S(E)
        • S(d);::S(E)
      • Refutation
        • S(d);
    • Try
      • R(H);CHECK
      • Vars
        • P(h);S_CUTP(i),XR(H)::QAR(I)
      • Refutation
        • P(i);XR(H)
    • Try
      • Q(I);
      • Threat
        • QAR2(I),XP(f)
      • Vars
        • B(g);N_GUARD,XP(C)::S(G),XP(k)
        • P(c);OGATEB::B(A)
        • S(d);N_GUARD::QAB1(I)
        • S(d);N_GUARD::QAB1(I),XS(d)
      • Refutation
        • B(a);
  • Actual
    • Q(I);
    • Threat
      • QAR2(I),XP(f)
    • Vars
      • B(g);N_GUARD,XP(C)::S(G),XP(k)
      • P(f);N_GUARD,XQ(I)::B(A)
      • P(c);OGATEB::B(A)
      • B(a);N_GUARD::QAB(I),XP(b)
      • S(d);::S(E)
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