MESON Chess Problem Database

Problem Display
PID: 138251 (1Bb5/5B2/6P1/2KN1k2/2pP4/2N1npR1/Q3R3/4rrb1 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Probleemblad, 2010

1Bb5/5B2/6P1/2KN1k2/2pP4/2N1npR1/Q3R3/4rrb1

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qb1#
      • 2.Qc2#
    • 1...Sc2
      • 2.Qxc2#
    • 1...Sg2
      • 2.Qc2#
  • Tries
    • 1.Bf4?
      • threat
        • 2.Rg5#
      • 1...Sg4
        • 2.Qc2#
      • 1...Sxd5!
    • 1.Be5?
      • threat
        • 2.Se7#
      • 1...Sxd5
        • 2.Qc2#
      • 1...Sg4!
    • 1.Qb1+?
      • 1...Sc2
        • 2.Qxc2#
      • 1...Rxb1!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sd6#
      • 1...Kxe4
        • 2.Qc2#
      • 1...Sxd5
        • 2.Rg5#
      • 1...Sg4
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(d);N_GUARD,P_PINP(E)::QAB(A),XS(d)
    • S(d);N_GUARD,P_PINP(E)::QAB(A)
  • Tries
    • Try
      • B(J);
      • Threat
        • R1(D)
      • Vars
        • S(d);N_GUARD,P_PINP(E)::QAB(A)
      • Refutation
        • S(d);P_PINP(E),XS(G)
    • Try
      • B(J);
      • Threat
        • S(G)
      • Vars
        • S(d);N_GUARD,P_PINP(E),XS(G)::QAB(A)
      • Refutation
        • S(d);P_PINP(E)
    • Try
      • Q(A);CHECK
      • Vars
        • S(d);N_GUARD,P_PINP(E),P_SPINS(d)::QAB(A),XS(d)
      • Refutation
        • R(a);XQ(A)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(g);OGATEB,P_SPINS(d),S_FLIGHT,XS(C)::QAB(A)
      • S(d);P_PINP(E),XS(G)::R1(D)
      • S(d);P_PINP(E)::S(G)
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