MESON Chess Problem Database

Problem Display
PID: 234901 (K3N1b1/1nb2p1B/2n5/4PP2/2P1kNR1/R3P1p1/1pp1P1P1/7Q w - - 0 1)

Haring, Jacobus

Hlas l'udu, 1970

K3N1b1/1nb2p1B/2n5/4PP2/2P1kNR1/R3P1p1/1pp1P1P1/7Q

#2

13 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Sd3#
    • 1...Sxe5
      • 2.Sf6#
  • Tries
    • 1.Qh5?
      • threat
        • 2.Sg6#
      • 1...Kxe5
        • 2.Sd3#
        • 2.f6#
      • 1...Sxe5
        • 2.Sf6#
      • 1...Bxe5!
    • 1.Qh6?
      • threat
        • 2.Sd3#
      • 1...Kxe5
        • 2.Sd3#
      • 1...Bxe5
        • 2.Qxc6#
      • 1...Sxe5
        • 2.Sf6#
      • 1...Bxh7!
    • 1.f6+?
      • 1...Kxe5
        • 2.Rg5#
        • 2.Qh5#
      • 1...Bxh7!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sg6#
      • 1...Kxe5
        • 2.Sd3#
      • 1...Bxe5
        • 2.Qf3#
      • 1...Sxe5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);P-FLIGHT,XP(I)::S(G)
    • S(e);SBLOCK,XP(I)::S(M)
  • Tries
    • Try
      • Q(A);
      • Threat
        • R(H)+S(G)
      • Vars
        • S(e);SBLOCK,XP(I)::S(M)
      • Refutation
        • B(g);XP(I)
    • Try
      • Q(A);
      • Threat
        • R(H)+S(G)
      • Vars
        • K(d);P-FLIGHT,XP(I)::S(G)
        • B(g);SBLOCK,XP(I)::QAB(A),XS(e)
        • S(e);SBLOCK,XP(I)::S(M)
      • Refutation
        • B(i);XB(K)
    • Try
      • P(J);CHECK
      • Refutation
        • B(i);XB(K)
  • Actual
    • Q(A);
    • Threat
      • R(H)+S(G)
    • Vars
      • K(d);P-FLIGHT,XP(I)::S(G)
      • B(g);SBLOCK,XP(I)::QAB1(A)
      • S(e);SBLOCK,XP(I)::S(M)
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