MESON Chess Problem Database

Problem Display
PID: 242264 (B2Q2b1/8/4P3/1KNpk3/3R2P1/4pp2/8/8 w - - 0 1)

Kisis, Imants J

Hlas l'udu, 1984

B2Q2b1/8/4P3/1KNpk3/3R2P1/4pp2/8/8

#2

7 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qf6#
  • Tries
    • 1.Sd3+?
      • 1...Kxe6
        • 2.Bxd5#
      • 1...Kxd4!
    • 1.Qg5+?
      • 1...Kxd4
        • 2.Qf6#
        • 2.Qg7#
      • 1...Kd6!
    • 1.Qc7+?
      • 1...Kxd4
        • 2.Qg7#
      • 1...Kf6!
    • 1.Qf8?
      • threat
        • 2.Rxd5#
        • 2.Qf4#
      • 1...Kxd4
        • 2.Qg7#
        • 2.Qf6#
      • 1...Bxe6
        • 2.Qf4#
      • 1...Bf7!
    • 1.g5?
      • threat
        • 2.Qxd5#
      • 1...Kxd4
        • 2.Qf6#
      • 1...Kf5
        • 2.Qf6#
      • 1...Bxe6!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qf6#
      • 1...Kxd4
        • 2.Qxd5#
      • 1...Kf4
        • 2.Qg5#
      • 1...Kxe6
        • 2.Qe8#
      • 1...dxe4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINP(c),S_FLIGHT,XR(A)::QAB(G)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(E)::B(F),XP(c)
      • Refutation
        • K(d);P_SPINP(c),S_FLIGHT,XR(A)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(d);P_SPINP(c),S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(d);S_FLIGHT,XR(A)::QAB(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(e);XP(E)::QAB1(G)
      • Refutation
        • B(e);
    • Try
      • P(B);
      • Threat
        • QAR1(G),XP(c)
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT,XR(A)::QAB(G)
        • K(d);P-FLIGHT::QAR1(G)
      • Refutation
        • B(e);XP(E)
  • Actual
    • S(D);
    • Threat
      • QAB1(G)
    • Vars
      • K(d);P_SPINP(c),S_FLIGHT,XR(A)::QAR1(G),XP(c)
      • K(d);S_FLIGHT::QAB1(G)
      • K(d);OGATEB,P-FLIGHT,XP(E)::QAR2(G)
      • P(c);OGATE,XS(D)::R1(A),XP(c)
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