MESON Chess Problem Database

Problem Display
PID: 50468 (3K1N2/5p2/4P3/1b1BkNB1/7p/2q5/nQ6/2nR1R2 w - - 0 1)

Bernard, Henry D'Oyly

Chess Amateur (The), 1906

3K1N2/5p2/4P3/1b1BkNB1/7p/2q5/nQ6/2nR1R2

#2

9 + 7

15 British Chess Magazine 1917

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Qxd4#
    • 1...Be2
      • 2.Sd7#
    • 1...Bc4
      • 2.Sd7#
      • 2.Qb8#
    • 1...Ba6
      • 2.Sd7#
    • 1...Bc6
      • 2.Qb8#
    • 1...Bd7
      • 2.Sxd7#
    • 1...Sb4
      • 2.Qxc3#
    • 1...fxe6
      • 2.Sg6#
    • 1...f6
      • 2.Sg6#
  • Tries
    • 1.Bg2?
      • threat
        • 2.Rd5#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...fxe6
        • 2.Sg6#
      • 1...Bc4
        • 2.Qb8#
      • 1...Bc6
        • 2.Qb8#
      • 1...Sd3
        • 2.Qe2#
      • 1...Sb4
        • 2.Qxc3#
      • 1...Bd3!
    • 1.Qe2+?
      • 1...Qe3
        • 2.Qxe3#
      • 1...Bxe2
        • 2.Sd7#
      • 1...Sxe2!
  • Keys
    • 1.Bh1!
      • threat
        • 2.Rd5#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...fxe6
        • 2.Sg6#
      • 1...Bd3
        • 2.Qh2#
      • 1...Bc4
        • 2.Qb8#
      • 1...Bc6
        • 2.Qb8#
      • 1...Sd3
        • 2.Qe2#
      • 1...Sb4
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(c);OGATE,P_PINB(D)::QAB1(C),XQ(c)
    • B(e);N_GUARD::S(I)
    • B(e);OGATE::QAB(C)
    • B(e);N_GUARD::S(I),XB(e)
    • S(b);N_GUARD::QAB(C),XQ(c)
    • P(g);N_GUARD,XP(G)::S(I)
    • P(g);N_GUARD::S(I)
  • Tries
    • Try
      • B(D);
      • Threat
        • R1(A)
      • Vars
        • Q(c);CHECK,OGATE::QAB1(C),XQ(c)
        • P(g);N_GUARD,SBLOCK,XP(G)::S(I)
        • B(e);OGATE::QAB(C)
        • S(a);N_GUARD,S_CUTB(e)::QAR(C)
        • S(b);N_GUARD::QAB(C),XQ(c)
      • Refutation
        • B(e);
    • Try
      • Q(C);CHECK,N_PINQ(c)
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::QAR2(C),XQ(c)
        • B(e);XQ(C)::S(I)
      • Refutation
        • S(a);XQ(C)
  • Actual
    • B(D);
    • Threat
      • R1(A)
    • Vars
      • Q(c);CHECK,OGATE::QAB1(C),XQ(c)
      • P(g);N_GUARD,SBLOCK,XP(G)::S(I)
      • B(e);::QAB(C)
      • B(e);OGATE::QAB(C)
      • S(a);N_GUARD,S_CUTB(e)::QAR(C)
      • S(b);N_GUARD::QAB(C),XQ(c)
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