MESON Chess Problem Database

Problem Display
PID: 189958 (1K2b3/8/5p2/4kp2/2Q5/3R2p1/2N5/8 w - - 0 1)

Vetesnik, Ladislav

Lidove noviny, 1913

1K2b3/8/5p2/4kp2/2Q5/3R2p1/2N5/8

#2

4 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qd5#
  • Tries
    • 1.Kc7?
      • threat
        • 2.Re3#
      • 1...f4
        • 2.Qd5#
      • 1...Bc6!
    • 1.Rd4?
      • threat
        • 2.Qe2#
        • 2.Qd5#
      • 1...f4
        • 2.Qd5#
      • 1...Bb5
        • 2.Qd5#
      • 1...Bh5
        • 2.Qd5#
      • 1...Bf7
        • 2.Qe2#
      • 1...Bc6!
    • 1.Rd6?
      • threat
        • 2.Re6#
        • 2.Qd4#
      • 1...f4
        • 2.Qd5#
        • 2.Qe6#
      • 1...Bd7
        • 2.Qd4#
      • 1...Bf7
        • 2.Qd4#
      • 1...Kxd6!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sf3#
      • 1...Ke4
        • 2.Sf3#
        • 2.Sc6#
      • 1...Kf4
        • 2.Sf3#
      • 1...Kd6
        • 2.Sc6#
      • 1...Bh5
        • 2.Sc6#
      • 1...Bc6
        • 2.Sxc6#
      • 1...f4
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR1(C)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • P(c);SBLOCK::QAR1(C)
      • Refutation
        • B(e);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAR1(C)
        • B(e);::QAR1(C)
        • B(e);::QAR(C)
      • Refutation
        • B(e);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(e);::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • K(b);S_FLIGHT::QAR(C)+S(A)
      • K(b);S_FLIGHT::R(B)+S(A)
      • B(e);N_GUARD::S(A)
      • B(e);N_GUARD::S(A),XB(e)
      • P(c);SBLOCK::QAR1(C)
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