MESON Chess Problem Database

Problem Display
PID: 12117 (2q4B/1r6/B2p4/3pnp2/N2kNp1Q/3Pp3/2P2P2/4b1nK w - - 0 1)

Fleck, Ferenc

4th Comm., BCF 137. Ty., 1974-1975

2q4B/1r6/B2p4/3pnp2/N2kNp1Q/3Pp3/2P2P2/4b1nK

#2

9 + 11

SOLUTION

  • SOUND
  • Tries
    • 1.Sec3?
      • threat
        • 2.Qxf4#
      • 1...Rh7
        • 2.Sb5#
      • 1...Se2
        • 2.Sxe2#
      • 1...Sh3
        • 2.Se2#
      • 1...Qxh8!
    • 1.Sg3?
      • threat
        • 2.Qxf4#
      • 1...Qxh8
        • 2.Sxf5#
      • 1...Se2
        • 2.Sxe2#
      • 1...Sh3
        • 2.Se2#
      • 1...Rh7!
    • 1.Sg5?
      • threat
        • 2.Qxf4#
      • 1...Qxh8
        • 2.Se6#
      • 1...Se2
        • 2.Sf3#
      • 1...Sh3
        • 2.Sf3#
      • 1...Rh7!
    • 1.Bxe5+?
      • 1...Kxe5
        • 2.Qf6#
      • 1...dxe5!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Qxf4#
      • 1...Qxh8
        • 2.c3#
      • 1...Rh7
        • 2.Sb3#
      • 1...Se2
        • 2.Sf3#
      • 1...Sh3
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);P_PINP(e)
      • Threat
        • QAR2(G),XP(e)
      • Vars
        • R(j);N_GUARD,P_PINQ(G)::S(F)
        • S(b);N_GUARD::S(F),XS(b)
        • S(b);N_GUARD::S(F)
      • Refutation
        • Q(k);N_SPINS(g),P_PINQ(G),XB(I)
    • Try
      • S(F);P_PINP(e)
      • Threat
        • QAR2(G),XP(e)
      • Vars
        • Q(k);N_GUARD,N_SPINS(g),P_PINQ(G),XB(I)::S(F),XP(h)
        • S(b);N_GUARD::S(F),XS(b)
        • S(b);N_GUARD::S(F)
      • Refutation
        • R(j);P_PINQ(G)
    • Try
      • S(F);P_PINP(e)
      • Threat
        • QAR2(G),XP(e)
      • Vars
        • Q(k);N_GUARD,N_SPINS(g),P_PINQ(G),XB(I)::S(F)
        • S(b);N_GUARD::S(F)
      • Refutation
        • R(j);P_PINQ(G)
    • Try
      • B(I);CHECK,XS(g)
      • Vars
        • K(d);S_FLIGHT,XB(I)::QAB1(G)
      • Refutation
        • P(i);XB(I)
  • Actual
    • S(F);P_PINP(e)
    • Threat
      • QAR2(G),XP(e)
    • Vars
      • Q(k);N_GUARD,N_SPINS(g),P_PINQ(G),XB(I)::P(B)
      • R(j);N_GUARD,P_PINQ(G)::S(F)
      • S(b);N_GUARD::S(F)
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