MESON Chess Problem Database

Problem Display
PID: 69806 (5B2/2K2p1p/4pQ2/p2k2N1/b1nN1p2/2RpPr1q/5n2/2r5 w - - 0 1)

Paslack, Rainer

3rd Comm., Die Schwalbe, 2006

5B2/2K2p1p/4pQ2/p2k2N1/b1nN1p2/2RpPr1q/5n2/2r5

#2

7 + 13

23 Die Schwalbe 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.e4#
    • 1...Sh1
      • 2.e4#
    • 1...Sg4
      • 2.e4#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Qd4#
      • 1...Se5
        • 2.Rc5#
      • 1...e5!
    • 1.Sdxf3?
      • threat
        • 2.Qd4#
      • 1...Se5
        • 2.Qxe5#
      • 1...e5!
    • 1.Sb5?
      • threat
        • 2.Qd4#
      • 1...e5
        • 2.Qc6#
      • 1...Se5!
    • 1.Sc6?
      • threat
        • 2.Qd4#
      • 1...Se5
        • 2.Se7#
        • 2.Qxe5#
      • 1...e5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qd4#
      • 1...e5
        • 2.Qxf7#
      • 1...Se5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(b);N_GUARD::P(B)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(E)
      • Vars
        • S(g);OGATE::R1(A)
      • Refutation
        • P(k);
    • Try
      • S(C);XR(d)
      • Threat
        • QAR1(E)
      • Vars
        • S(g);N_GUARD,P_PINR(A)::QAR1(E),XS(g)
      • Refutation
        • P(k);
    • Try
      • S(C);
      • Threat
        • QAR1(E)
      • Vars
        • P(k);OGATE,SBLOCK::QAB1(E)
      • Refutation
        • S(g);P_PINR(A)
    • Try
      • S(C);
      • Threat
        • QAR1(E)
      • Refutation
        • P(k);
  • Actual
    • S(C);
    • Threat
      • QAR1(E)
    • Vars
      • P(k);OGATEB,SBLOCK::QAB(E),XP(l)
      • S(g);P_PINR(A)::S(C)
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