MESON Chess Problem Database

Problem Display
PID: 233275 (B3R2K/n2pR1N1/nB1k4/3p3p/2pr4/r2b4/4N3/b3Q3 w - - 0 1)

Paslack, Rainer

Freie Presse, 1991

B3R2K/n2pR1N1/nB1k4/3p3p/2pr4/r2b4/4N3/b3Q3

#2

8 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Sf5#
    • 1...Bf5
      • 2.Sxf5#
    • 1...Sb4
      • 2.Qxb4#
    • 1...Sc7
      • 2.Qb4#
    • 1...Sb8
      • 2.Qb4#
  • Tries
    • 1.Qb4+?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sxb4!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qe5#
      • 1...Re4
        • 2.Sf5#
      • 1...Be2
        • 2.Sf5#
      • 1...Be4
        • 2.Qg3#
      • 1...Sc6
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(c);N_GUARD,XS(B)::S(E)
    • B(c);N_GUARD::S(E),XB(c)
    • S(h);N_GUARD::QAB(A),XS(h)
    • S(h);N_GUARD::QAB(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAB1(A),XS(h)
      • Refutation
        • S(h);XQ(A)
  • Actual
    • S(B);
    • Threat
      • QAB1(A)
    • Vars
      • R(e);S_CUTB(c)::S(E)
      • B(c);N_GUARD::S(E)
      • B(c);S_CUTR(e)::QAB(A)
      • S(j);N_GUARD::S(B)
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