MESON Chess Problem Database

Problem Display
PID: 261996 (1b1R4/3b2K1/2P1B3/2P1k3/3Np3/2Q5/8/2B5 w - - 0 1)

Hjelle, David

Problemnoter, 1957

1b1R4/3b2K1/2P1B3/2P1k3/3Np3/2Q5/8/2B5

#2

8 + 4

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc6
      • 2.Qg3#
    • 1...Bxe6
      • 2.Qg3#
    • 1...Bc8
      • 2.Rd5#
      • 2.Qg3#
    • 1...Be8
      • 2.Rd5#
      • 2.Qg3#
    • 1...e3
      • 2.Qxe3#
  • Tries
    • 1.Bb2?
      • threat
        • 2.Qg3#
      • 1...e3
        • 2.Qxe3#
      • 1...Kf4!
    • 1.Rxd7?
      • threat
        • 2.Rd5#
        • 2.Qg3#
      • 1...e3
        • 2.Qxe3#
      • 1...Bd6!
    • 1.Rf8?
      • threat
        • 2.Bf4#
        • 2.Rf5#
      • 1...e3
        • 2.Qxe3#
      • 1...Bxe6!
    • 1.Qb3?
      • threat
        • 2.Qd5#
      • 1...Bxc6
        • 2.Sxc6#
        • 2.Qg3#
        • 2.Qxb8#
      • 1...Bxe6
        • 2.Qxe6#
        • 2.Qg3#
        • 2.Qxb8#
      • 1...e3
        • 2.Qxe3#
      • 1...Kxd4!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qd5#
      • 1...Bxc6
        • 2.Sxc6#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...e3
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(c);XP(E)::QAB(B)
    • B(c);XB(F)::QAB(B)
    • P(a);OGATEB::QAR2(B),XP(a)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAB(B)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(H);XB(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • B(d);
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • B(c);XB(F)
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • K(b);P_SPINB(c),S_FLIGHT,XS(C)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • B(c);XP(E)::S(C),XB(c)
      • B(c);OGATE,XB(F)::QAR1(B),XB(c)
      • P(a);N_GUARD::S(C)
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