MESON Chess Problem Database

Problem Display
PID: 18197 (2K1R3/3Q2p1/1Np5/3NP1P1/1p2k2P/R1b2pP1/1qrn1B2/1B2n3 w - - 0 1)

Fleck, Ferenc

1st Prize, Budapest Chess Association, 1954

2K1R3/3Q2p1/1Np5/3NP1P1/1p2k2P/R1b2pP1/1qrn1B2/1B2n3

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Sxc3#
    • 1...Bd4
      • 2.Qg4#
    • 1...Bxe5
      • 2.Qg4#
    • 1...g6
      • 2.Sf6#
  • Tries
    • 1.Sxb4?
      • threat
        • 2.Qg4#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Qxb4!
    • 1.Se7?
      • threat
        • 2.Qf5#
      • 1...Kxe5
        • 2.Sed5#
        • 2.Sf5#
        • 2.Sxc6#
        • 2.Sg6#
        • 2.Sg8#
      • 1...g6!
    • 1.Rf8?
      • threat
        • 2.Qf5#
      • 1...Kd3
        • 2.Sxc3#
      • 1...Kxe5
        • 2.Re8#
        • 2.Qe7#
      • 1...g6!
    • 1.Qe6?
      • threat
        • 2.Qg6#
      • 1...g6
        • 2.Qxg6#
      • 1...Kd3!
    • 1.Qd6?
      • threat
        • 2.Qg6#
      • 1...Kd3
        • 2.Sxc3#
      • 1...g6
        • 2.Qxg6#
      • 1...Kf5!
    • 1.Qf7?
      • threat
        • 2.Qg6#
      • 1...g6
        • 2.Qxg6#
      • 1...Kd3!
    • 1.g4?
      • threat
        • 2.Qf5#
      • 1...Kd3
        • 2.Sxc3#
      • 1...g6!
  • Keys
    • 1.Qxc6!
      • threat
        • 2.Qg6#
      • 1...Kd3
        • 2.Sf4#
      • 1...Kf5
        • 2.Se3#
      • 1...Bxe5
        • 2.Se7#
      • 1...g6
        • 2.Qxg6#
      • 1...Bd4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(h);P_SPINB(e),S_FLIGHT::QAR(J)+S(F),XB(e)
    • B(e);::QAR2(J)
    • B(e);P_SPINB(e),XP(G)::QAR2(J)
    • P(j);N_GUARD::S(F)
  • Tries
    • Try
      • S(F);XP(g)
      • Threat
        • QAR2(J)
      • Vars
        • S(a);N_GUARD::QAB1(J)
        • S(a);N_GUARD,N_SPINR(c)::QAB1(J),XS(a)
      • Refutation
        • Q(b);XS(F)
    • Try
      • S(F);
      • Threat
        • QAB1(J)
      • Refutation
        • P(j);
    • Try
      • R(L);
      • Threat
        • QAB1(J)
      • Vars
        • K(h);P_SPINB(e),S_FLIGHT::QAR(J)+S(F),XB(e)
      • Refutation
        • P(j);
    • Try
      • Q(J);
      • Threat
        • QAB(J)
      • Vars
        • P(j);::QAB(J),XP(j)
      • Refutation
        • K(h);P_SPINB(e),S_FLIGHT
    • Try
      • Q(J);
      • Threat
        • QAB(J)
      • Vars
        • K(h);P_SPINB(e),S_FLIGHT::QAR(J)+S(F),XB(e)
        • P(j);::QAB(J),XP(j)
      • Refutation
        • K(h);S_FLIGHT
    • Try
      • Q(J);
      • Threat
        • QAB(J)
      • Vars
        • P(j);::QAB(J),XP(j)
      • Refutation
        • K(h);P_SPINB(e),S_FLIGHT
    • Try
      • P(D);
      • Threat
        • QAB1(J)
      • Vars
        • K(h);P_SPINB(e),S_FLIGHT::QAR(J)+S(F),XB(e)
      • Refutation
        • P(j);
  • Actual
    • Q(J);XP(i)
    • Threat
      • QAB(J)
    • Vars
      • K(h);P_SPINB(e),S_FLIGHT::S(F)
      • K(h);S_FLIGHT::S(F)
      • B(e);P_PINQ(J),P_SPINB(e),SBLOCK,XP(G)::QAB(J)+S(F)
      • P(j);::QAB(J),XP(j)
      • B(e);P_PINQ(J),SBLOCK::QAB(J)+S(F)
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