MESON Chess Problem Database

Problem Display
PID: 248877 (B7/rn3N1K/3p4/q2p2B1/2r1kNP1/2Qp2P1/5PP1/4n3 w - - 0 1)

Blikeng, Bjarne

Skakbladet, 1979

B7/rn3N1K/3p4/q2p2B1/2r1kNP1/2Qp2P1/5PP1/4n3

#2

10 + 9

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Qxd3#
    • 1...Sxg2
      • 2.Qxd3#
    • 1...Sf3
      • 2.Qxd3#
    • 1...Sc5
      • 2.Bxd5#
      • 2.Qxc4#
    • 1...Sd8
      • 2.Qxc4#
    • 1...d2
      • 2.Qe3#
  • Tries
    • 1.Qxe1+?
      • 1...Kd4
        • 2.Se6#
      • 1...Qxe1!
    • 1.f3+?
      • 1...Sxf3
        • 2.Qxd3#
      • 1...Ke3!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Sg5#
      • 1...Qc7
        • 2.Qxe1#
      • 1...Rc7
        • 2.Qd4#
      • 1...Sf3
        • 2.Qxd3#
      • 1...Sc5
        • 2.Bxd5#
        • 2.Qxc4#
      • 1...Sd8
        • 2.Qxc4#
      • 1...d4
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::QAB1(C),XP(b)
    • S(a);N_GUARD,XP(B)::QAB1(C),XP(b)
    • S(i);P_PINS(H),P_SPINP(f)::QAR2(C),XR(c)
    • P(b);OGATE::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK,XS(a)
      • Vars
        • K(d);P-FLIGHT::S(E)
      • Refutation
        • Q(e);XQ(C)
    • Try
      • P(A);CHECK
      • Vars
        • S(a);XP(A)::QAB1(C),XP(b)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(b)
  • Actual
    • B(G);
    • Threat
      • S(H)
    • Vars
      • Q(e);N_GUARD,P_PINS(H)::QAR(C),XS(a)
      • R(c);N_GUARD,P_PINS(H)::QAR1(C)
      • S(a);N_GUARD::QAB1(C),XP(b)
      • S(i);P_PINS(H),P_SPINP(f)::QAR2(C),XR(c)
      • P(f);P_SPINS(i)::S(H),XP(g)
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