MESON Chess Problem Database

Problem Display
PID: 175462 (7r/2b5/4P3/1Pp2NR1/1N2k3/1P6/3RKB2/Q7 w - - 0 1)

Hamilton, Charles Dingee Pennock

Philadelphia Times, 1899

7r/2b5/4P3/1Pp2NR1/1N2k3/1P6/3RKB2/Q7

#2

10 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...cxb4
      • 2.Qd4#
    • 1...c4
      • 2.Qd4#
  • Tries
    • 1.Sg3+?
      • 1...Kf4
        • 2.Be3#
        • 2.Qf6#
      • 1...Bxg3!
    • 1.Sd6+?
      • 1...Kf4
        • 2.Be3#
        • 2.Qe5#
        • 2.Qf6#
      • 1...Bxd6!
    • 1.Rd4+?
      • 1...cxd4
        • 2.Qxd4#
      • 1...Ke5!
    • 1.Rg4+?
      • 1...Bf4
        • 2.Sg3#
        • 2.Sd6#
      • 1...Kxf5!
  • Keys
    • 1.Sd3!
      • 1...Kd5
        • 2.Sxc5#
      • 1...Rh1
        • 2.Qxh1#
        • 2.Qa8#
      • 1...Rh2
        • 2.Qa8#
      • 1...Rh3
        • 2.Qa8#
      • 1...Rh4
        • 2.Qa8#
      • 1...Rh5
        • 2.Qa8#
      • 1...Rh6
        • 2.Qa8#
      • 1...Rh7
        • 2.Qa8#
      • 1...Ra8
        • 2.Qh1#
        • 2.Qxa8#
      • 1...Rb8
        • 2.Qh1#
      • 1...Rc8
        • 2.Qh1#
      • 1...Rd8
        • 2.Qh1#
      • 1...Re8
        • 2.Qh1#
      • 1...Rf8
        • 2.Qh1#
      • 1...Rg8
        • 2.Qh1#
      • 1...Bh2
        • 2.Qh1#
      • 1...Bg3
        • 2.Sxg3#
      • 1...Bf4
        • 2.Sxc5#
      • 1...Ba5
        • 2.Sg3#
        • 2.Sd6#
        • 2.Qe5#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bb6
        • 2.Sg3#
        • 2.Sd6#
        • 2.Qe5#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Bb8
        • 2.Qa8#
      • 1...Bd8
        • 2.Sg3#
        • 2.Sd6#
        • 2.Qe5#
        • 2.Qa8#
      • 1...c4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 1
  • Sets
    • P(b);N_GUARD,XS(F)::QAR1(A)
    • P(b);N_GUARD::QAR1(A)
  • Tries
    • Try
      • S(H);CHECK
      • Refutation
        • B(c);XS(H)
    • Try
      • S(H);CHECK
      • Refutation
        • B(c);XS(H)
    • Try
      • R(B);CHECK
      • Vars
        • P(b);OGATE,XR(B)::QAR1(A),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(I);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(H)
  • Actual
    • S(F);
    • Vars
      • K(a);S_FLIGHT::R(B)+S(F),XP(b)
      • R(d);N_GUARD,P_PINB(D)::QAB(A)
      • R(d);N_GUARD::QAB(A)
      • B(c);S_CUTR(d)::QAB(A)
      • B(c);N_GUARD::S(H),XB(c)
      • B(c);SBLOCK::S(F),XP(b)
      • B(c);N_GUARD::QAR1(A),XB(c)
      • P(b);N_GUARD::QAR1(A)
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