MESON Chess Problem Database

Problem Display
PID: 226796 (8/8/2Bnp2b/4pn2/K5R1/3k4/6Q1/B2N4 w - - 0 1)

Hess, Willi

Comm., Schweizerische Schachzeitung, 1979

8/8/2Bnp2b/4pn2/K5R1/3k4/6Q1/B2N4

#2

6 + 6

16895 Schweizer Schachkompositionen (1976-1986) (Henneberger) 1989

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Be4#
    • 1...Se4
      • 2.Bb5#
    • 1...Sb5
      • 2.Bxb5#
    • 1...Sb7
      • 2.Bb5#
    • 1...Sf7
      • 2.Bb5#
    • 1...Sc8
      • 2.Bb5#
    • 1...Se8
      • 2.Bb5#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Qc2#
      • 1...Bd2
        • 2.Qf1#
      • 1...Se3
        • 2.Sb2#
      • 1...Sd4+!
    • 1.Be4+?
      • 1...Kc4
        • 2.Qc2#
      • 1...Sxe4!
    • 1.Bb5+?
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sxb5!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Qc2#
      • 1...Kxc4
        • 2.Qc2#
      • 1...Sxc4
        • 2.Be4#
      • 1...Bd2
        • 2.Qf1#
      • 1...Se3
        • 2.Sb2#
      • 1...Sd4
        • 2.Rc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • S(d);N_GUARD,SBLOCK::B(F)
    • S(d);N_GUARD::B(F)
    • S(d);N_GUARD::B(F),XS(d)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAB1(C)
      • Vars
        • B(f);SBLOCK::QAB(C)
        • S(c);SBLOCK::S(B)
      • Refutation
        • S(c);CHECK
    • Try
      • B(F);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • S(d);XB(F)
    • Try
      • B(F);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::B(F),XS(d)
      • Refutation
        • S(d);XB(F)
  • Actual
    • R(E);
    • Threat
      • QAB1(C)
    • Vars
      • K(a);S_FLIGHT,XR(E)::QAR2(C)
      • S(d);N_GUARD,SBLOCK,XR(E)::B(F)
      • B(f);SBLOCK::QAB(C)
      • S(c);SBLOCK::S(B)
      • S(c);SBLOCK::R1(E)
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