MESON Chess Problem Database

Problem Display
PID: 145584 (5bb1/2Np2r1/1Q6/rNp5/1Pk5/P5R1/pBP5/Knn5 w - - 0 1)

Beach, Lennox F

Good Companions (October), 1917

5bb1/2Np2r1/1Q6/rNp5/1Pk5/P5R1/pBP5/Knn5

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb5
      • 2.Qxb5#
    • 1...Rg4
      • 2.Rxg4#
    • 1...Re7
      • 2.Sd6#
      • 2.Qxc5#
    • 1...Rh7
      • 2.Rg4#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Sd2
      • 2.Rc3#
    • 1...Sc3
      • 2.Rxc3#
    • 1...Sb3+
      • 2.cxb3#
    • 1...cxb4
      • 2.Qd4#
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qf4#
      • 1...Sb3+
        • 2.cxb3#
      • 1...Bxd6
        • 2.Sxd6#
      • 1...cxb4
        • 2.Qd4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Rg4
        • 2.Rxg4#
      • 1...Re7
        • 2.Qxc5#
      • 1...Rf7
        • 2.Qd5#
      • 1...Bh7
        • 2.Qd5#
      • 1...Sd2
        • 2.Rc3#
      • 1...Sc3
        • 2.Rxc3#
      • 1...Se2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(e);OGATE,XS(G)::QAB1(H),XR(e)
    • R(h);N_GUARD::R(E),XR(h)
    • R(h);N_GUARD::R(E)
    • B(i);N_GUARD::S(G),XB(i)
    • S(a);N_GUARD::R1(E)
    • S(a);N_GUARD::R1(E),XS(a)
    • S(b);CHECK,OGATE::P(C),XS(b)
    • P(f);OGATE,XP(F)::QAR1(H)
  • Actual
    • Q(H);
    • Threat
      • QAR(H)
    • Vars
      • S(b);CHECK,OGATE::P(C),XS(b)
      • B(i);XQ(H)::S(G),XB(i)
      • P(f);N_GUARD,XP(F)::QAR1(H)
      • B(j);N_GUARD::QAB1(H),XB(j)
      • R(h);N_GUARD::R(E),XR(h)
      • R(h);S_CUTB(i)::QAR1(H),XP(f)
      • R(h);S_CUTB(j)::QAB1(H)
      • B(j);N_GUARD::QAB1(H)
      • S(a);N_GUARD::R1(E)
      • S(a);N_GUARD::R1(E),XS(a)
      • S(b);N_GUARD::QAB1(H)
      • S(b);N_GUARD::QAB1(H),XS(b)
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