MESON Chess Problem Database

Problem Display
PID: 41486 (8/3p3r/b1RP4/K2k4/8/1N5B/2Q5/8 w - - 0 1)

Skalik, Frantisek

Ceske listy sachove, 1899

8/3p3r/b1RP4/K2k4/8/1N5B/2Q5/8

#2

6 + 4

3360 Simple Two-move Themes 1924
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qf5#
  • Tries
    • 1.Bf5?
      • threat
        • 2.Qe4#
        • 2.Qc5#
      • 1...dxc6
        • 2.Qc5#
      • 1...Bc4
        • 2.Qe4#
      • 1...Rh4
        • 2.Qc5#
      • 1...Re7
        • 2.Qc5#
      • 1...Bd3
        • 2.Qc5#
      • 1...Ke5!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qf5#
        • 2.Qd4#
      • 1...Kxc6
        • 2.Bg2#
      • 1...Bxd3!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Bxc4!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Rc5#
      • 1...Ke5
        • 2.Qf5#
      • 1...Kxc6
        • 2.Bg2#
      • 1...dxc6
        • 2.Qe6#

This anticipates 194103(1917), 194106(1917)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(A)
  • Tries
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XR(E)::QAR1(A)
        • B(b);::QAB1(A)
        • R(d);::QAR1(A)
        • B(b);::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(E)::B(C)
      • Refutation
        • B(b);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • B(b);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • R1(E)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT,XR(E)::B(C)
      • P(c);N_GUARD,SBLOCK,XR(E)::QAB1(A)
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