MESON Chess Problem Database

Problem Display
PID: 49478 (4R1B1/B4Q2/1n1p4/3rn3/R1pkN3/2p3P1/2P2p2/5Kb1 w - - 0 1)

Anonymous

BCPA 02. Ty., 1879

4R1B1/B4Q2/1n1p4/3rn3/R1pkN3/2p3P1/2P2p2/5Kb1

#2

9 + 9

497 Huddersfield College Magazine 1879

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qf4#
  • Tries
    • 1.Bxb6+?
      • 1...Kxe4
        • 2.Bh7#
        • 2.Qf4#
      • 1...Rc5!
    • 1.Qxf2+?
      • 1...Kxe4
        • 2.Bh7#
        • 2.Qf4#
      • 1...Bxf2!
  • Keys
    • 1.Sc5!
      • 1...Ke3
        • 2.Qf4#
      • 1...Kxc5
        • 2.Qxd5#
      • 1...Rxc5
        • 2.Qf4#
      • 1...Sxf7
        • 2.Sb3#
      • 1...Sxa4
        • 2.Qf4#
      • 1...dxc5
        • 2.Qf4#
      • 1...Bh2
        • 2.Qxf2#
      • 1...Sd3
        • 2.Sb3#
      • 1...Sf3
        • 2.Sb3#
      • 1...Sg4
        • 2.Sb3#
      • 1...Sc6
        • 2.Sb3#
      • 1...Sg6
        • 2.Sb3#
      • 1...Sed7
        • 2.Sb3#
      • 1...Sbd7
        • 2.Qf4#
      • 1...Sa8
        • 2.Qf4#
      • 1...Sc8
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 1
  • Sets
    • K(e);N_SPINS(h),OGATEB,P-FLIGHT,P_SPINS(g),XS(E)::QAR1(G)
  • Tries
    • Try
      • B(F);CHECK,XS(h)
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • Q(G);CHECK,XP(b)
      • Refutation
        • B(a);XQ(G)
  • Actual
    • S(E);N_PINS(h)
    • Vars
      • K(e);N_SPINP(d),P_SPINS(g),S_FLIGHT::QAB1(G)
      • K(e);N_SPINP(d),P_SPINS(h),S_FLIGHT,XS(E)::QAR1(G),XR(f)
      • R(f);SBLOCK,XS(E)::QAR2(G)
      • S(g);XQ(G)::S(E)
      • S(h);N_SPINP(d),XR(D)::QAR2(G)
      • P(i);SBLOCK,XS(E)::QAR2(G)
      • B(a);N_GUARD::QAB(G),XP(b)
      • S(g);::S(E)
      • S(h);::QAR2(G)
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