MESON Chess Problem Database

Problem Display
PID: 222409 (4K3/4p3/4P3/4Q3/4B3/4R3/4b3/3NkN2 w - - 0 1)

Hamilton, Charles Dingee Pennock

Milwaukee Telegraph, 1883

4K3/4p3/4P3/4Q3/4B3/4R3/4b3/3NkN2

#2

7 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd1
      • 2.Qa1#
  • Tries
    • 1.Kd7?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Kxe7?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Kf7?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Kd8?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Kf8?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Bd3?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Bf5?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Bg6?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Bh7?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Qb2?
      • threat
        • 2.Qxe2#
      • 1...Kxd1
        • 2.Qa1#
        • 2.Qb1#
        • 2.Qd2#
      • 1...Kxf1!
    • 1.Qh2?
      • threat
        • 2.Qxe2#
      • 1...Kxf1
        • 2.Qh1#
        • 2.Qf2#
      • 1...Kxd1!
    • 1.Qc3+?
      • 1...Kxd1
        • 2.Qa1#
        • 2.Qd2#
      • 1...Kxf1!
    • 1.Qg3+?
      • 1...Kxf1
        • 2.Qf2#
      • 1...Kxd1!
    • 1.Qf6?
      • 1...Kxd1
        • 2.Qa1#
      • 1...exf6!
    • 1.Qg7?
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Qb8?
      • 1...Kxd1
        • 2.Qb1#
      • 1...Kxf1!
    • 1.Qa5+?
      • 1...Kxd1
        • 2.Qd2#
        • 2.Qa1#
      • 1...Kxf1!
    • 1.Qb5?
      • threat
        • 2.Qxe2#
      • 1...Kxd1
        • 2.Qb1#
      • 1...Kxf1!
    • 1.Qh5?
      • threat
        • 2.Qxe2#
      • 1...Kxf1
        • 2.Qh1#
      • 1...Kxd1!
  • Keys
    • 1.Qh8!
      • 1...Kxd1
        • 2.Qa1#
      • 1...Kxf1
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • K(G);P-FLIGHT,XP(c)
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • K(G);S_FLIGHT
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • K(G);P-FLIGHT
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • K(G);P-FLIGHT
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • B(D);
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • B(D);
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • B(D);
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • B(D);
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XB(b)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XB(b)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(A)
    • Try
      • Q(E);CHECK
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)::QAR1(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(A)
    • Try
      • Q(E);
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • P(c);XQ(E)
    • Try
      • Q(E);
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • Q(E);
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR2(E)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • Q(E);CHECK
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(B)
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XB(b)
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XB(b)
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(B)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
  • Actual
    • Q(E);
    • Vars
      • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(A)::QAR(E)
      • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(B)::QAR2(E)
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