MESON Chess Problem Database

Problem Display
PID: 35988 (1bbQ3K/6n1/5BRp/7r/2pP1k2/2pqn1N1/5NP1/1B2R3 w - - 0 1)

Daniel, Arthur William

Recomm., BCF 004. Ty., 1930-1931

1bbQ3K/6n1/5BRp/7r/2pP1k2/2pqn1N1/5NP1/1B2R3

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qe2
      • 2.Sxe2#
    • 1...Qf5
      • 2.Se2#
    • 1...Qxg6
      • 2.Se2#
    • 1...Qxd4
      • 2.Se2#
      • 2.Qxd4#
    • 1...Rf5
      • 2.Sh3#
    • 1...Bf5
      • 2.Qxb8#
    • 1...Sef5
      • 2.Rg4#
    • 1...Sgf5
      • 2.Sxh5#
  • Tries
    • 1.Qc7+?
      • 1...Re5
        • 2.Bxe5#
      • 1...Bxc7!
    • 1.Qd6+?
      • 1...Re5
        • 2.Bxe5#
      • 1...Bxd6!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Be5#
      • 1...Qxg6
        • 2.Se2#
      • 1...Qxd4
        • 2.Se2#
      • 1...Qf5
        • 2.Se2#
      • 1...Re5
        • 2.Bxe5#
      • 1...Rf5
        • 2.Sh3#
      • 1...Be5
        • 2.Bxe5#
      • 1...Bf5
        • 2.Qxb8#
      • 1...Sef5
        • 2.Rg4#
      • 1...Sgf5
        • 2.Sxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(b);N_GUARD::S(E),XQ(b)
    • Q(b);N_GUARD::S(E)
    • Q(b);N_GUARD,XR(H)::S(E)
    • R(f);N_GUARD,S_CUTB(j)::S(C)
    • B(j);OGATE::QAB(I),XB(i)
    • S(c);N_GUARD,S_CUTB(j)::R1(H)
    • S(h);N_GUARD,SBLOCK::S(E),XR(f)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::B(G),XR(f)
      • Refutation
        • B(i);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::B(G),XR(f)
      • Refutation
        • B(i);XQ(I)
  • Actual
    • Q(I);
    • Threat
      • QAR(I)+B(G),DCHECK
    • Vars
      • Q(b);N_GUARD,XR(H)::S(E)
      • Q(b);N_GUARD,XP(F)::S(E)
      • Q(b);N_GUARD::S(E)
      • R(f);::QAR(I)+B(G),DCHECK,XR(f)
      • R(f);N_GUARD,S_CUTB(j)::S(C)
      • B(i);::QAR(I)+B(G),DCHECK,XB(i)
      • B(j);OGATE::QAB(I),XB(i)
      • S(c);N_GUARD,S_CUTB(j)::R1(H)
      • S(h);N_GUARD,SBLOCK::S(E),XR(f)
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