MESON Chess Problem Database

Problem Display
PID: 223127 (8/8/6B1/K2kBN2/6nR/5p2/1Q3P2/8 w - - 0 1)

Hamilton, Charles Dingee Pennock

Philadelphia Times, 1885

8/8/6B1/K2kBN2/6nR/5p2/1Q3P2/8

#2

7 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qb5#
    • 1...Ke4
      • 2.Se3#
      • 2.Se7#
      • 2.Qd4#
    • 1...Kc5
      • 2.Qb5#
    • 1...Kc6
      • 2.Qb5#
  • Tries
    • 1.Se7+?
      • 1...Kc4
        • 2.Qc3#
        • 2.Qc2#
        • 2.Qb4#
        • 2.Qb5#
      • 1...Kc5
        • 2.Qc1#
        • 2.Qc3#
        • 2.Qd4#
        • 2.Qc2#
        • 2.Qb4#
        • 2.Qb5#
      • 1...Ke6!
    • 1.Sg7?
      • threat
        • 2.Qb5#
      • 1...Kc4
        • 2.Qb5#
      • 1...Kc5
        • 2.Qb5#
      • 1...Kc6
        • 2.Qb5#
      • 1...Sxe5!
    • 1.Bf7+?
      • 1...Kc5
        • 2.Qc1#
        • 2.Qc3#
        • 2.Qc2#
        • 2.Qb5#
        • 2.Qb6#
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke4!
    • 1.Rxg4?
      • 1...Kc5
        • 2.Qb5#
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6!
    • 1.Qd4+?
      • 1...Ke6
        • 2.Qd6#
      • 1...Kc6!
    • 1.Qb4?
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Qd6#
      • 1...Sxf2
        • 2.Qd6#
      • 1...Sxe5
        • 2.Qd6#
      • 1...Sh2
        • 2.Qd6#
      • 1...Se3
        • 2.Qd6#
      • 1...Sf6
        • 2.Qd6#
      • 1...Sh6
        • 2.Qd6#
      • 1...Kxe5!
    • 1.Qb5+?
      • 1...Ke4
        • 2.Se3#
        • 2.Sg3#
        • 2.Sd4#
        • 2.Sd6#
        • 2.Sh6#
        • 2.Se7#
        • 2.Sg7#
        • 2.Rxg4#
      • 1...Ke6!
    • 1.Qb6?
      • 1...Kc4
        • 2.Se3#
        • 2.Qb5#
      • 1...Ke4
        • 2.Qd4#
      • 1...Sxf2
        • 2.Qd6#
      • 1...Sxe5
        • 2.Se3#
        • 2.Se7#
        • 2.Rd4#
        • 2.Qd6#
      • 1...Sh2
        • 2.Qd6#
      • 1...Se3
        • 2.Qd6#
      • 1...Sf6
        • 2.Qd6#
      • 1...Sh6
        • 2.Qd6#
      • 1...Kxe5!
  • Keys
    • 1.Qb8!
      • 1...Kc4
        • 2.Qb5#
      • 1...Ke4
        • 2.Se3#
        • 2.Se7#
      • 1...Kc5
        • 2.Qb5#
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Qd6#
      • 1...Sxf2
        • 2.Qd6#
      • 1...Sxe5
        • 2.Qd6#
      • 1...Sh2
        • 2.Qd6#
      • 1...Se3
        • 2.Qd6#
      • 1...Sf6
        • 2.Qd6#
      • 1...Sh6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINS(b),S_FLIGHT::QAB1(A)
    • K(c);P-FLIGHT::QAR1(A)
    • K(c);S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);
      • Threat
        • QAR2(A)
      • Vars
        • K(c);P_SPINS(b),S_FLIGHT::QAB1(A)
        • K(c);P-FLIGHT::QAR1(A)
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • S(b);XB(E)
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
    • Try
      • R(C);XS(b)
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);S_FLIGHT::QAB1(A)
        • K(c);S_FLIGHT::QAR1(A)
        • S(b);XP(B)::QAR1(A)
        • S(b);XB(E)::QAR1(A)
        • S(b);::QAR1(A)
      • Refutation
        • K(c);P-FLIGHT,XB(E)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);P_SPINS(b),S_FLIGHT::QAR1(A)
        • S(b);XP(B)::QAR1(A)
        • S(b);::QAR1(A)
      • Refutation
        • K(c);P-FLIGHT,XB(E)
  • Actual
    • Q(A);
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT::QAB1(A)
      • K(c);P-FLIGHT::QAR1(A)
      • K(c);S_FLIGHT::QAB1(A)
      • K(c);S_FLIGHT::QAR1(A)
      • S(b);XP(B)::QAR1(A)
      • S(b);XB(E)::QAR1(A)
      • S(b);::QAR1(A)
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