MESON Chess Problem Database

Problem Display
PID: 260756 (2bB4/n7/k7/3Nr2R/2P1p3/1R2N3/2K5/2b3QB w - - 0 1)

Hoffmann, Martin Wolfgang

Neue Zurcher Zeitung, 2005

2bB4/n7/k7/3Nr2R/2P1p3/1R2N3/2K5/2b3QB

#2

9 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Sc7#
    • 1...Re8
      • 2.Sc7#
    • 1...Bxe3
      • 2.Qa1#
    • 1...Bb7
      • 2.Sb4#
  • Tries
    • 1.Sd1?
      • threat
        • 2.Qb6#
      • 1...Re6
        • 2.Sc7#
      • 1...e3
        • 2.Sb4#
      • 1...Be3!
    • 1.Sf1?
      • threat
        • 2.Qb6#
      • 1...Re6
        • 2.Sc7#
      • 1...e3
        • 2.Sb4#
      • 1...Be3!
    • 1.Sg2?
      • threat
        • 2.Qb6#
      • 1...Be3
        • 2.Qa1#
      • 1...Re6
        • 2.Sc7#
      • 1...e3!
    • 1.Sf5?
      • threat
        • 2.Qb6#
      • 1...Be3
        • 2.Qa1#
      • 1...e3
        • 2.Sb4#
      • 1...Re6!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Qb6#
      • 1...Be3
        • 2.Qa1#
      • 1...Re6
        • 2.Sc7#
      • 1...e3
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(c);::S(G)
    • B(a);OGATE,XS(E)::QAR(A)
    • B(f);SBLOCK::S(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • R(c);::S(G)
        • P(b);::S(G)
      • Refutation
        • B(a);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • R(c);::S(G)
        • P(b);::S(G)
      • Refutation
        • B(a);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • B(a);OGATE::QAR(A)
        • R(c);::S(G)
      • Refutation
        • P(b);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • B(a);OGATE::QAR(A)
        • P(b);::S(G)
      • Refutation
        • R(c);
  • Actual
    • S(E);
    • Threat
      • QAR1(A)
    • Vars
      • B(a);OGATE::QAR(A)
      • R(c);::S(G)
      • P(b);::S(G)
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