MESON Chess Problem Database

Problem Display
PID: 219593 (8/3p4/3P1P1R/KN1kb2Q/3P3P/8/8/2BR4 w - - 0 1)

Campbell, AWD

The Field, 1884

(First published on Sat Jul 12 1884)

8/3p4/3P1P1R/KN1kb2Q/3P3P/8/8/2BR4

#2

10 + 3

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qf7#
    • 1...Ke4
      • 2.Sc3#
    • 1...Kc6
      • 2.Qf3#
    • 1...Ke6
      • 2.d5#
  • Tries
    • 1.Ka4?
      • 1...Kc4
        • 2.Qf7#
      • 1...Ke4
        • 2.Sc3#
      • 1...Ke6
        • 2.d5#
      • 1...Kc6!
    • 1.Kb4?
      • 1...Ke4
        • 2.Sc3#
      • 1...Ke6
        • 2.d5#
      • 1...Kc6!
    • 1.Ka6?
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.d5#
      • 1...Kc4!
    • 1.Kb6?
      • 1...Ke4
        • 2.Sc3#
      • 1...Ke6
        • 2.d5#
      • 1...Kc4!
    • 1.Bb2?
      • 1...Kc4
        • 2.Qf7#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.d5#
      • 1...Ke4!
    • 1.Ba3?
      • 1...Kc4
        • 2.Qf7#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.Sc7#
        • 2.d5#
      • 1...Ke4!
    • 1.Be3?
      • 1...Kc4
        • 2.Qf7#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.d5#
      • 1...Ke4!
    • 1.Bf4?
      • 1...Kc4
        • 2.Qf7#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.d5#
      • 1...Ke4!
    • 1.Re1?
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.Rxe5#
      • 1...Kc4!
    • 1.Rd2?
      • 1...Kc4
        • 2.Qf7#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.d5#
      • 1...Ke4!
    • 1.Rd3?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.d5#
      • 1...Kc4!
    • 1.Rh8?
      • 1...Kc4
        • 2.Qf7#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6!
    • 1.Qf3+?
      • 1...Kc4
        • 2.Sa3#
      • 1...Ke6!
    • 1.Qxe5+?
      • 1...Kc6
        • 2.Qe4#
      • 1...Kc4!
    • 1.Qf5?
      • 1...Kc6
        • 2.Qe4#
        • 2.Qf3#
      • 1...Kc4!
    • 1.f7?
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Qf3#
      • 1...Kc4!
  • Keys
    • 1.Rh7!
      • 1...Kc4
        • 2.Qf7#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
    • K(a);N_SPINB(b),S_FLIGHT::S(F)
    • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
        • K(a);N_SPINB(b),S_FLIGHT::S(F)
        • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::S(F)
        • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::S(F)
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
        • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::S(F)
        • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
        • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
        • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
        • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
        • K(a);S_FLIGHT::R1(B),XB(b)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
        • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::QAB1(G)
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
        • K(a);N_SPINB(b),OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • R(J);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
        • K(a);N_SPINB(b),S_FLIGHT::S(F)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • Q(G);CHECK,N_PINB(b)
      • Vars
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);CHECK,XB(b)
      • Vars
        • K(a);S_FLIGHT::QAB(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • P(I);
      • Vars
        • K(a);N_SPINB(b),S_FLIGHT::S(F)
        • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
  • Actual
    • R(J);
    • Vars
      • K(a);N_SPINB(b),S_FLIGHT::QAB(G)
      • K(a);N_SPINB(b),S_FLIGHT::S(F)
      • K(a);N_SPINB(b),S_FLIGHT::QAR1(G),XB(b)
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