MESON Chess Problem Database

Problem Display
PID: 22123 (nq3B1Q/N7/R2rPP2/2k3p1/b1npP3/8/N1R2K2/8 w - - 0 1)

Funk, Jacob E

Simple Two-move Themes, 1924

nq3B1Q/N7/R2rPP2/2k3p1/b1npP3/8/N1R2K2/8

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Bxd6#
    • 1...Qb2
      • 2.Bxd6#
    • 1...Qb3
      • 2.Bxd6#
    • 1...Qb4
      • 2.Bxd6#
    • 1...Qb5
      • 2.Bxd6#
    • 1...Qb7
      • 2.Bxd6#
    • 1...Qc8
      • 2.Bxd6#
    • 1...Qe8
      • 2.Bxd6#
    • 1...Bxc2
      • 2.Rc6#
    • 1...Bb3
      • 2.Rc6#
    • 1...Bc6
      • 2.Rxc6#
    • 1...Sc7
      • 2.Bxd6#
    • 1...g4
      • 2.Qh5#
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qf5#
      • 1...Qxf8
        • 2.Qa3#
      • 1...Bxc2
        • 2.Rc6#
      • 1...d3
        • 2.Qe3#
      • 1...Qb7
        • 2.Bxd6#
      • 1...Bc6
        • 2.Rxc6#
      • 1...Sb6
        • 2.Qa3#
      • 1...Sc7
        • 2.Bxd6#
      • 1...g4
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(h);N_GUARD::B(I),XR(f)
    • Q(h);N_GUARD,P_PINR(B)::B(I),XR(f)
    • B(a);N_GUARD,N_SPINS(b),XR(B)::R1(E)
    • B(a);N_GUARD::R1(E)
    • B(a);N_GUARD::R1(E),XB(a)
    • S(g);S_CUTQ(h)::B(I),XR(f)
    • P(e);OGATEB::QAR(J)
  • Actual
    • Q(J);
    • Threat
      • QAR(J)
    • Vars
      • Q(h);N_GUARD,N_SPINR(f),P_PINP(G),XB(I)::QAB(J)
      • B(a);N_GUARD,N_SPINS(b),XR(B)::R1(E)
      • P(c);OGATEB::QAB(J)
      • Q(h);N_GUARD::B(I),XR(f)
      • B(a);N_GUARD::R1(E),XB(a)
      • S(g);S_CUTQ(h)::QAB(J)
      • S(g);S_CUTQ(h)::B(I),XR(f)
      • P(e);OGATEB::QAR(J)
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