MESON Chess Problem Database

Problem Display
PID: 159632 (8/3R4/p2P4/pn4p1/N1k1BnQ1/PN2p3/1R2P3/2K5 w - - 0 1)

Andrew, Frederick William

The House, 0000

8/3R4/p2P4/pn4p1/N1k1BnQ1/PN2p3/1R2P3/2K5

#2

10 + 7

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe2+
      • 2.Qxe2#
    • 1...Sg2
      • 2.Qe6#
    • 1...Sd3+
      • 2.exd3#
    • 1...Sh3
      • 2.Qe6#
    • 1...Sd5
      • 2.Bd3#
    • 1...Sh5
      • 2.Qe6#
    • 1...Se6
      • 2.Qxe6#
    • 1...Sg6
      • 2.Qe6#
    • 1...Sd4
      • 2.Sxa5#
  • Tries
    • 1.Qf5?
      • threat
        • 2.Qc5#
      • 1...Sd3+
        • 2.Bxd3#
        • 2.exd3#
      • 1...Sd5
        • 2.Bd3#
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Se6
        • 2.Bd3#
        • 2.Bd5#
        • 2.Qxe6#
        • 2.Qd5#
      • 1...Sxe2+!
    • 1.Qe6+?
      • 1...Sd5
        • 2.Bd3#
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Sxe6!
    • 1.Qxg5?
      • threat
        • 2.Qc5#
      • 1...Sd3+
        • 2.Bxd3#
        • 2.exd3#
      • 1...Sd5
        • 2.Bd3#
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Se6
        • 2.Bd3#
        • 2.Bd5#
        • 2.Qd5#
      • 1...Sxe2+!
  • Keys
    • 1.Rb7!
      • 1...Sxe2+
        • 2.Qxe2#
      • 1...Sd3+
        • 2.exd3#
      • 1...Sxa3
        • 2.Qc8#
      • 1...Sxd6
        • 2.Rc2#
      • 1...Sg2
        • 2.Qe6#
      • 1...Sh3
        • 2.Qe6#
      • 1...Sd5
        • 2.Bd3#
      • 1...Sh5
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sg6
        • 2.Qe6#
      • 1...Sc3
        • 2.Qc8#
      • 1...Sd4
        • 2.Sxa5#
      • 1...Sa7
        • 2.Rc2#
      • 1...Sc7
        • 2.Rc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(c);CHECK,OGATE,XP(C)::QAB(H),XS(c)
    • S(c);N_GUARD::QAB(H)
    • S(c);CHECK,OGATE::P(C),XS(c)
    • S(c);SBLOCK::QAR(H)+B(G),DCHECK
    • S(c);N_GUARD::QAB(H),XS(c)
    • S(e);SBLOCK::S(E),XP(d)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Refutation
        • S(c);CHECK,XP(C)
    • Try
      • Q(H);CHECK
      • Refutation
        • S(c);XQ(H)
    • Try
      • Q(H);XP(f)
      • Threat
        • QAR1(H)
      • Refutation
        • S(c);CHECK,XP(C)
  • Actual
    • R(J);
    • Vars
      • S(c);CHECK,OGATE,XP(C)::QAB(H),XS(c)
      • S(c);CHECK,OGATE::P(C),XS(c)
      • S(e);N_GUARD,XP(D)::QAR(H)
      • S(e);N_GUARD,XP(I)::R(B)
      • S(c);N_GUARD::QAB(H)
      • S(c);SBLOCK::QAR(H)+B(G),DCHECK
      • S(c);N_GUARD::QAB(H),XS(c)
      • S(e);N_GUARD::QAR(H)
      • S(e);SBLOCK::S(E),XP(d)
      • S(e);N_GUARD::R(B)
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