MESON Chess Problem Database

Problem Display
PID: 244881 (8/3n4/4p3/3p1B2/R1pk2pN/pQ1N1P2/n2P4/7K w - - 0 1)

Bakcsi, Gyorgy

Schweizerische Schachzeitung, 1992

8/3n4/4p3/3p1B2/R1pk2pN/pQ1N1P2/n2P4/7K

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sb4
      • 2.Qc3#
    • 1...Se5
      • 2.Qb6#
    • 1...Sb6
      • 2.Qxb6#
    • 1...Sf6
      • 2.Qb6#
    • 1...Sb8
      • 2.Qb6#
    • 1...Sf8
      • 2.Qb6#
    • 1...gxf3
      • 2.Sxf3#
    • 1...exf5
      • 2.Sxf5#
  • Tries
    • 1.Bxe6?
      • threat
        • 2.Sf5#
      • 1...Sc3
        • 2.Qxc3#
      • 1...gxf3!
    • 1.Qd1?
      • threat
        • 2.Qg1#
      • 1...gxf3
        • 2.Sxf3#
      • 1...exf5!
    • 1.Qb2+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...axb2!
    • 1.Qb6+?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sxb6!
    • 1.fxg4?
      • threat
        • 2.Sf3#
      • 1...Se5
        • 2.Qb6#
      • 1...exf5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qg1#
      • 1...gxf3
        • 2.Sxf3#
      • 1...exf5
        • 2.Sxf5#
      • 1...Sc1
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • S(a);N_GUARD::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
    • S(a);N_GUARD,N_SPINP(c)::QAB1(C)
    • S(h);N_GUARD::QAB(C)
    • S(h);N_GUARD::QAB(C),XS(h)
    • P(e);XP(E)::S(G),XP(e)
    • P(g);XB(H)::S(G),XP(g)
  • Tries
    • Try
      • B(H);XP(g)
      • Threat
        • S(G)
      • Vars
        • S(a);N_GUARD::QAB1(C),XS(a)
      • Refutation
        • P(e);XP(E)
    • Try
      • Q(C);
      • Threat
        • QAB(C)
      • Vars
        • P(e);XP(E)::S(G),XP(e)
      • Refutation
        • P(g);XB(H)
    • Try
      • Q(C);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(C),XS(a)
      • Refutation
        • P(b);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAB1(C),XS(h)
      • Refutation
        • S(h);XQ(C)
    • Try
      • P(E);XP(e)
      • Threat
        • S(G)
      • Vars
        • S(h);N_GUARD::QAB(C)
      • Refutation
        • P(g);XB(H)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • P(e);XP(E)::S(G),XP(e)
      • P(g);XB(H)::S(G),XP(g)
      • S(a);N_GUARD::QAB(C)
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