MESON Chess Problem Database

Problem Display
PID: 143829 (8/2p5/1pP2pp1/1p1p1k1p/1K1PNN1R/3QP3/8/8 w - - 0 1)

Boswell, Edward

Pratt, R

Bristol Times and Mirror, 1926

(First published on Wed Apr 14 1926)

8/2p5/1pP2pp1/1p1p1k1p/1K1PNN1R/3QP3/8/8

#2

8 + 8

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...dxe4
      • 2.Qxb5#
    • 1...g5
      • 2.Sd2#
      • 2.Sf2#
      • 2.Sc3#
      • 2.Sg3#
      • 2.Sc5#
      • 2.Sd6#
  • Tries
    • 1.Ka3?
      • 1...dxe4
        • 2.Qxb5#
      • 1...g5
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sd6#
      • 1...b4+!
    • 1.Kb3?
      • 1...dxe4
        • 2.Qxb5#
      • 1...g5
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sd6#
      • 1...b4!
    • 1.Kc3?
      • 1...dxe4
        • 2.Qxb5#
      • 1...g5
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sd6#
      • 1...b4+!
    • 1.Kxb5?
      • 1...g5
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sd6#
      • 1...dxe4!
    • 1.Sh3?
      • threat
        • 2.Sc5#
        • 2.Seg5#
      • 1...dxe4
        • 2.Qxe4#
      • 1...g5
        • 2.Sc5#
        • 2.Sexg5#
      • 1...Ke6!
    • 1.Sxd5?
      • 1...g5
        • 2.Sc5#
      • 1...Ke6!
    • 1.Se6?
      • threat
        • 2.S4c5#
        • 2.S4g5#
        • 2.Sg7#
      • 1...dxe4
        • 2.Qxe4#
      • 1...g5
        • 2.S4c5#
        • 2.S4xg5#
      • 1...Kxe6!
    • 1.Rxh5+?
      • 1...Kg4
        • 2.Qe2#
        • 2.Qd1#
      • 1...g5
        • 2.Sf2#
      • 1...gxh5!
    • 1.Qb1?
      • 1...g5
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sd6#
      • 1...dxe4!
    • 1.Qc2?
      • 1...g5
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sd6#
      • 1...dxe4!
    • 1.Qe2?
      • 1...dxe4
        • 2.Qxb5#
      • 1...g5
        • 2.Sg3#
      • 1...Kxe4!
    • 1.Qb3?
      • threat
        • 2.Qxd5#
      • 1...dxe4
        • 2.Qd5#
      • 1...Kxe4!
  • Keys
    • 1.Qf1!
      • 1...Kxe4
        • 2.Sg2#
      • 1...dxe4
        • 2.Qxb5#
      • 1...g5
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB,P_SPINP(b),SBLOCK,XS(E)::QAR(A),XP(a)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • P(b);OGATEB,P_SPINP(b),SBLOCK,XS(E)::QAR(A),XP(a)
      • Refutation
        • P(a);CHECK
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(b);OGATEB,P_SPINP(b),SBLOCK,XS(E)::QAR(A),XP(a)
      • Refutation
        • P(a);
    • Try
      • K(C);S_FLIGHT
      • Vars
        • P(b);OGATEB,P_SPINP(b),SBLOCK,XS(E)::QAR(A),XP(a)
      • Refutation
        • P(a);CHECK
    • Try
      • K(C);P-FLIGHT,XP(a)
      • Refutation
        • P(b);P_SPINP(b),XS(E)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATE,P_SPINP(b),XS(E)::QAB1(A),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);XP(b)
      • Vars
        • P(g);SBLOCK::QAB(A)+S(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);OGATE,P_SPINP(b),XS(E)::QAB1(A),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XS(F)
    • Try
      • R(G);CHECK,XP(d)
      • Vars
        • P(g);P_SPINP(g)::QAB(A)+S(E)
      • Refutation
        • P(g);XR(G)
    • Try
      • Q(A);
      • Refutation
        • P(b);P_SPINP(b),XS(E)
    • Try
      • Q(A);
      • Refutation
        • P(b);P_SPINP(b),XS(E)
    • Try
      • Q(A);
      • Vars
        • P(b);OGATEB,SBLOCK,XS(E)::QAR(A),XP(a)
        • P(g);SBLOCK::S(E)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(b)
      • Vars
        • P(b);XS(E)::QAR2(A)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
  • Actual
    • Q(A);
    • Vars
      • K(c);S_FLIGHT,XS(E)::R(G)+S(F)
      • P(b);OGATEB,SBLOCK,XS(E)::QAR(A),XP(a)
      • P(g);SBLOCK::S(E)
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