MESON Chess Problem Database

Problem Display
PID: 4942 (6B1/3Q1Np1/b5np/7N/4kP2/4n3/2P3P1/1K4B1 w - - 0 1)

Tolosa y Carreras, Jose

Shakhmatny Zhurnal, 1894

6B1/3Q1Np1/b5np/7N/4kP2/4n3/2P3P1/1K4B1

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Qxd3#
      • 2.cxd3#
    • 1...Bb7
      • 2.Qd3#
    • 1...Bc8
      • 2.Qd3#
    • 1...Sd1
      • 2.Sd6#
    • 1...Sf1
      • 2.Sd6#
    • 1...Sc4
      • 2.Qd3#
    • 1...Sg4
      • 2.Sd6#
    • 1...Sd5
      • 2.Sd6#
    • 1...Sf5
      • 2.Qc6#
    • 1...Sxf4
      • 2.Sg3#
  • Tries
    • 1.Sf6+?
      • 1...Kxf4
        • 2.Bh2#
      • 1...gxf6!
    • 1.Qe6+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Kd4!
    • 1.Qd5+?
      • 1...Sxd5
        • 2.Sd6#
      • 1...Kxd5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Sd6#
      • 1...Kf5
        • 2.Sd6#
      • 1...Sxf4
        • 2.Sg3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sc4
        • 2.Qd3#
      • 1...Sf5
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(c);N_GUARD::QAB1(G)
    • S(a);::S(H)
    • S(a);S_CUTB(c)::QAB1(G)
    • S(a);N_GUARD,SBLOCK::QAB(G)
    • S(d);SBLOCK,XP(E)::S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(E)::B(B)
      • Refutation
        • P(f);XS(F)
    • Try
      • Q(G);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAR1(G),XS(d)
      • Refutation
        • K(b);P-FLIGHT,P_SPINS(a)
    • Try
      • Q(G);CHECK
      • Vars
        • S(a);XQ(G)::S(H)
      • Refutation
        • K(b);S_FLIGHT,XQ(G)
  • Actual
    • Q(G);
    • Threat
      • S(H)
    • Vars
      • K(b);S_FLIGHT::S(H)
      • S(d);SBLOCK,XP(E)::S(F)
      • B(c);N_GUARD,P_PINP(C)::QAB1(G),XB(c)
      • S(a);S_CUTB(c)::QAB1(G)
      • S(a);SBLOCK::QAB1(G)
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