MESON Chess Problem Database

Problem Display
PID: 267264 (8/1p1Np3/4Q3/pk1K1p2/n4p1R/pPp5/4Nprq/b3BB2 w - - 0 1)

Bottacchi, Antonio

8th Prize, La Settimana Enigmistica 06. TT, 1934

8/1p1Np3/4Q3/pk1K1p2/n4p1R/pPp5/4Nprq/b3BB2

#2

8 + 13

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Qb6#
    • 1...Sc5
      • 2.Qb6#
    • 1...Sb6+
      • 2.Qxb6#
    • 1...c2
      • 2.Sc1#
      • 2.Sg1#
      • 2.Sg3#
      • 2.Sd4#
      • 2.Sxf4#
    • 1...f3
      • 2.Sc1#
      • 2.Sg1#
      • 2.Sxc3#
      • 2.Sg3#
      • 2.bxa4#
  • Tries
    • 1.Kd4?
      • threat
        • 2.Qc4#
      • 1...Kb4
        • 2.Qc4#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sb2
        • 2.Qb6#
      • 1...Sc5
        • 2.Qb6#
      • 1...c2+!
    • 1.Rxf4?
      • threat
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sxc3#
        • 2.Sg3#
        • 2.bxa4#
      • 1...Sb6+
        • 2.Qxb6#
      • 1...fxe1Q
        • 2.Sxc3#
        • 2.bxa4#
      • 1...fxe1S
        • 2.Sxc3#
        • 2.bxa4#
      • 1...fxe1B
        • 2.Sxc3#
        • 2.bxa4#
      • 1...fxe1R
        • 2.Sxc3#
        • 2.bxa4#
      • 1...b6
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sxc3#
        • 2.Sg3#
      • 1...Qg1
        • 2.Sxg1#
        • 2.Sxc3#
        • 2.bxa4#
      • 1...Qg3
        • 2.Sxc3#
        • 2.Sxg3#
        • 2.bxa4#
      • 1...Qh1
        • 2.Sg1#
        • 2.Sxc3#
        • 2.bxa4#
      • 1...Qh3
        • 2.Sxc3#
        • 2.Sg3#
        • 2.bxa4#
      • 1...Qh5
        • 2.Sxc3#
        • 2.bxa4#
      • 1...Rg1
        • 2.Sxg1#
        • 2.Sxc3#
        • 2.bxa4#
      • 1...Rg3
        • 2.Sxc3#
        • 2.Sxg3#
        • 2.bxa4#
      • 1...Sb2
        • 2.Sxc3#
        • 2.Qb6#
      • 1...Sc5
        • 2.Sxc3#
        • 2.Qb6#
      • 1...c2
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sd4#
        • 2.bxa4#
      • 1...Qxf4!
    • 1.Qc6+?
      • 1...Kb4
        • 2.Qxa4#
        • 2.Qc4#
      • 1...bxc6+!
  • Keys
    • 1.Ke5!
      • threat
        • 2.Qc4#
      • 1...c2+
        • 2.Sd4#
      • 1...f3+
        • 2.Sg3#
      • 1...Kb4
        • 2.Qc4#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sb2
        • 2.Qb6#
      • 1...Sc5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::QAR1(G)
    • S(g);CHECK,N_GUARD::QAR1(G),XS(g)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • QAB1(G)
      • Vars
        • K(j);P-FLIGHT,P_SPINP(f)::QAR1(G)
        • S(g);N_GUARD::QAR1(G),XS(g)
        • S(g);N_GUARD::QAR1(G)
      • Refutation
        • P(f);CHECK
    • Try
      • R(E);XP(h)
      • Threat
        • DUALS(5)
      • Vars
        • S(g);CHECK,N_GUARD::QAR1(G),XS(g)
      • Refutation
        • Q(d);XR(E)
    • Try
      • Q(G);CHECK
      • Refutation
        • P(l);CHECK,XQ(G)
  • Actual
    • K(F);P-FLIGHT
    • Threat
      • QAB1(G)
    • Vars
      • P(f);CHECK::B(B)+S(C),DCHECK
      • P(h);CHECK::B(B)+S(C)
      • K(j);P-FLIGHT,P_SPINP(f)::QAR1(G)
      • S(g);N_GUARD::QAR1(G),XS(g)
      • S(g);N_GUARD::QAR1(G)
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