MESON Chess Problem Database

Problem Display
PID: 93821 (3nb3/2N3p1/8/2P1k3/5NR1/2bQp2K/8/8 w - - 0 1)

Kvicala, Josef

Ceske listy sachove, 1898

3nb3/2N3p1/8/2P1k3/5NR1/2bQp2K/8/8

#2

6 + 6

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sfd5?
      • threat
        • 2.Rg5#
        • 2.Qe4#
      • 1...Bd7
        • 2.Qe4#
      • 1...Se6
        • 2.Qe4#
      • 1...Sf7
        • 2.Qe4#
      • 1...g5
        • 2.Rxg5#
        • 2.Qe4#
      • 1...Bg6!
    • 1.Sh5?
      • threat
        • 2.Rg5#
        • 2.Qe4#
        • 2.Qd5#
      • 1...Bd4
        • 2.Rg5#
        • 2.Qe4#
      • 1...Bc6
        • 2.Rg5#
      • 1...Bg6
        • 2.Qd5#
      • 1...Bd7
        • 2.Qe4#
        • 2.Qd5#
      • 1...Bf7
        • 2.Rg5#
        • 2.Qe4#
      • 1...Se6
        • 2.Qe4#
        • 2.Qd5#
      • 1...Sf7
        • 2.Qe4#
        • 2.Qd5#
      • 1...g5
        • 2.Rxg5#
        • 2.Qe4#
        • 2.Qd5#
      • 1...Bxh5!
    • 1.Sg6+?
      • 1...Kf6
        • 2.Qf1#
      • 1...Bxg6!
    • 1.Rg5+?
      • 1...Kxf4
        • 2.Rf5#
        • 2.Qf5#
      • 1...Kf6!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Se2#
        • 2.Sg2#
        • 2.Sd3#
        • 2.Sh5#
        • 2.Sfe6#
        • 2.Sg6#
        • 2.Qd5#
      • 1...Kxf5!
    • 1.Qd6+?
      • 1...Ke4
        • 2.Qd5#
      • 1...Kf5!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sd3#
      • 1...Kd4
        • 2.Sd3#
      • 1...Ke4
        • 2.Sd3#
        • 2.Sg6#
      • 1...Kf5
        • 2.Sd3#
        • 2.Sg6#
      • 1...Kf6
        • 2.Sg6#
      • 1...Bb5
        • 2.Sg6#
      • 1...Bg6
        • 2.Sxg6#

This anticipates 40130(1914)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);P_PINR(D)::QAR1(A)
        • S(e);::QAR1(A)
      • Refutation
        • B(f);
    • Try
      • S(C);
      • Threat
        • DUALS(3)
      • Vars
        • B(f);::R(D)
        • B(f);::QAR1(A)
      • Refutation
        • B(f);XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR(A)
      • Refutation
        • B(f);XS(C)
    • Try
      • R(D);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • S(C)
    • Vars
      • K(c);S_FLIGHT::R(D)+S(C)
      • K(c);S_FLIGHT::QAR(A)+S(C)
      • B(f);N_GUARD::S(C)
      • B(f);N_GUARD::S(C),XB(f)
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