MESON Chess Problem Database

Problem Display
PID: 148327 (1Nn1b3/2B5/1p4pQ/3pR1pr/1KPk1p1q/3ppR2/1n1P4/5B2 w - - 0 1)

Witt, Andreas

Comm., Die Schwalbe, 2012

1Nn1b3/2B5/1p4pQ/3pR1pr/1KPk1p1q/3ppR2/1n1P4/5B2

#2

9 + 13

23 Die Schwalbe 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Sxc6#
    • 1...Bf7
      • 2.Sc6#
    • 1...g4
      • 2.Rxf4#
      • 2.Qxf4#
  • Tries
    • 1.Rfxe3?
      • threat
        • 2.Rxd5#
      • 1...Sxc4
        • 2.Rxd3#
      • 1...fxe3
        • 2.dxe3#
      • 1...dxc4
        • 2.R3e4#
      • 1...Bc6
        • 2.Sxc6#
      • 1...Bf7
        • 2.Sc6#
      • 1...Se7
        • 2.Bxb6#
      • 1...g4
        • 2.Qxf4#
      • 1...Qh1!
    • 1.Re4+?
      • 1...dxe4
        • 2.Qg7#
      • 1...Kxe4!
  • Keys
    • 1.Qxg6!
      • threat
        • 2.Rxd5#
      • 1...Bxg6
        • 2.Sc6#
      • 1...Sxc4
        • 2.Qxd3#
      • 1...dxc4
        • 2.Qe4#
      • 1...Bc6
        • 2.Sxc6#
      • 1...Bf7
        • 2.Sc6#
      • 1...Se7
        • 2.Qxb6#
      • 1...g4
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(m);N_GUARD::S(I),XB(m)
    • B(m);N_GUARD::S(I)
  • Tries
    • Try
      • R(C);XP(c)
      • Threat
        • R1(F),XP(g)
      • Vars
        • S(a);N_GUARD,XP(E)::R1(C),XP(b)
        • P(e);OGATE,XR(C)::P(B),XP(e)
        • P(g);N_GUARD,XP(E)::R1(C)
        • B(m);N_GUARD::S(I),XB(m)
        • B(m);N_GUARD::S(I)
        • S(l);N_GUARD::B(H),XP(j)
        • P(h);OGATE::QAR2(G),XP(e)
      • Refutation
        • Q(f);
    • Try
      • R(F);CHECK
      • Vars
        • P(g);SBLOCK,XR(F)::QAB(G)
      • Refutation
        • K(d);P-FLIGHT,XR(F)
  • Actual
    • Q(G);XP(k)
    • Threat
      • R1(F),XP(g)
    • Vars
      • B(m);N_GUARD,XQ(G)::S(I)
      • S(a);N_GUARD,XP(E)::QAR1(G),XP(b)
      • P(g);N_GUARD,XP(E)::QAR1(G)
      • B(m);N_GUARD::S(I),XB(m)
      • B(m);N_GUARD::S(I)
      • S(l);N_GUARD::QAB(G),XP(j)
      • P(h);N_GUARD,S_CUTQ(f)::R(C),XP(e)
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