MESON Chess Problem Database

Problem Display
PID: 149872 (n2BK2b/1p1RnB2/4p3/3pkNpN/4b1Q1/2P3p1/8/6q1 w - - 0 1)

Paslack, Rainer

1st Prize, Schach-Aktiv, 2008

n2BK2b/1p1RnB2/4p3/3pkNpN/4b1Q1/2P3p1/8/6q1

#2

8 + 11

23 Die Schwalbe 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.cxd4#
    • 1...Sb6
      • 2.Bc7#
    • 1...Sc7+
      • 2.Bxc7#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qxe6#
      • 1...Sc7+
        • 2.Bxc7#
      • 1...Bf5
        • 2.Qd4#
      • 1...Sf5!
    • 1.Sd4?
      • threat
        • 2.Qxe6#
      • 1...Sc7+
        • 2.Bxc7#
      • 1...Bf5
        • 2.Sf3#
      • 1...Sf5!
    • 1.Sxe7?
      • threat
        • 2.Qxe6#
      • 1...Sc7+
        • 2.Bxc7#
      • 1...Qb6
        • 2.Qxg3#
      • 1...Bf5!
    • 1.Sfg7?
      • threat
        • 2.Qxe6#
      • 1...Sc7+
        • 2.Bxc7#
      • 1...Sf5
        • 2.Bf6#
      • 1...Qb6
        • 2.Qxg3#
      • 1...Bf5!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Qxe6#
      • 1...Sc7+
        • 2.Bxc7#
      • 1...Sf5
        • 2.Sg6#
      • 1...Qb6
        • 2.Qxg3#
      • 1...Bf5
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(a);OGATE::P(A),XQ(a)
    • S(j);N_GUARD::B(G)
    • S(j);CHECK,N_GUARD::B(G),XS(j)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(B),XP(g)
      • Vars
        • S(j);CHECK,N_GUARD::B(G),XS(j)
        • B(c);OGATE::QAB1(B)
      • Refutation
        • S(i);
    • Try
      • S(C);
      • Threat
        • QAR1(B),XP(g)
      • Vars
        • S(j);CHECK,N_GUARD::B(G),XS(j)
        • B(c);N_GUARD::S(C)
      • Refutation
        • S(i);
    • Try
      • S(C);XS(i)
      • Threat
        • QAR1(B),XP(g)
      • Vars
        • S(j);CHECK,N_GUARD::B(G),XS(j)
        • Q(a);N_GUARD::QAB(B),XP(b)
      • Refutation
        • B(c);
    • Try
      • S(C);
      • Threat
        • QAR1(B),XP(g)
      • Vars
        • S(j);CHECK,N_GUARD::B(G),XS(j)
        • S(i);OGATE::B(G)
        • Q(a);N_GUARD::QAB(B),XP(b)
      • Refutation
        • B(c);
  • Actual
    • S(C);
    • Threat
      • QAR1(B),XP(g)
    • Vars
      • S(j);CHECK,N_GUARD::B(G),XS(j)
      • S(i);N_GUARD,S_CUTB(c)::S(C)
      • Q(a);N_GUARD::QAB(B),XP(b)
      • B(c);N_GUARD::S(C)
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