MESON Chess Problem Database
Problem Display
PID: 64452 (b1B2Rq1/8/3ppbN1/R2nnk1P/3Q3P/5N2/8/K7 w - - 0 1)
Bonavia-Hunt, Rev Noel Aubrey
Chess, 1947
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Sc3
- 2.Se7#
- 2.Qf4#
- 1...Se3
- 2.Se7#
- 2.Qf4#
- 1...Sb4
- 2.Se7#
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb6
- 2.Se7#
- 2.Qf4#
- 1...Sc7
- 2.Se7#
- 2.Qf4#
- 1...Se7
- 2.Sxe7#
- 2.Qf4#
- 1...Sd3
- 2.Se7#
- 2.Rxf6#
- 1...Sxf3
- 2.Se7#
- 2.Rxf6#
- 1...Sc4
- 2.Se7#
- 2.Rxf6#
- 1...Sg4
- 2.Se7#
- 1...Sc6
- 2.Rxf6#
- 1...Sxg6
- 2.Rxf6#
- 1...Sd7
- 2.Se7#
- 1...Sc3
- Tries
- 1.Sd2?
- threat
- 2.Qe4#
- 1...Sxg6
- 2.Rxf6#
- 1...Sf4
- 2.Qxf4#
- 1...Sc3
- 2.Se7#
- 2.Qf4#
- 1...Se3
- 2.Se7#
- 2.Qf4#
- 1...Sb4
- 2.Se7#
- 2.Qf4#
- 1...Sb6
- 2.Se7#
- 2.Qf4#
- 1...Sc7
- 2.Se7#
- 2.Qf4#
- 1...Se7
- 2.Sxe7#
- 2.Qf4#
- 1...Sd3
- 2.Se7#
- 2.Rxf6#
- 1...Sf3
- 2.Se7#
- 2.Rxf6#
- 1...Sc4
- 2.Se7#
- 2.Rxf6#
- 1...Sg4
- 2.Se7#
- 1...Sc6
- 2.Rxf6#
- 1...Sd7
- 2.Se7#
- 1...Sf7!
- threat
- 1.Rxd5?
- threat
- 2.Se7#
- 2.Qf4#
- 1...Qxf8
- 2.Qf4#
- 1...Qf7
- 2.Qf4#
- 1...Qh7
- 2.Qf4#
- 1...Qg7
- 2.Qf4#
- 1...Qxg6!
- threat
- 1.Rxf6+?
- 1...Sxf6
- 2.Se7#
- 2.Qf4#
- 1...Kxf6!
- 1...Sxf6
- 1.Sd2?
- Keys
- 1.Sg5!
- threat
- 2.Qe4#
- 1...Sxg6
- 2.Rxf6#
- 1...Sf4
- 2.Qxf4#
- 1...Sc3
- 2.Se7#
- 2.Qf4#
- 1...Se3
- 2.Se7#
- 2.Qf4#
- 1...Sb4
- 2.Se7#
- 2.Qf4#
- 1...Sb6
- 2.Se7#
- 2.Qf4#
- 1...Sc7
- 2.Se7#
- 2.Qf4#
- 1...Se7
- 2.Sxe7#
- 2.Qf4#
- 1...Sd3
- 2.Se7#
- 2.Rxf6#
- 1...Sf3
- 2.Se7#
- 2.Rxf6#
- 1...Sc4
- 2.Se7#
- 2.Rxf6#
- 1...Sg4
- 2.Se7#
- 1...Sc6
- 2.Rxf6#
- 1...Sd7
- 2.Se7#
- 1...Sf7
- 2.Bxe6#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD,P_SPINS(b)::QAR1(C),XS(a)
- S(b);P_PINQ(C),P_SPINS(a)::S(G)
- S(b);P_PINQ(C),P_SPINS(a)::R1(I),XB(f)
- S(b);P_PINQ(C),P_SPINS(a),XS(G)::R1(I),XB(f)
- S(b);N_SPINP(e),P_PINQ(C),P_SPINS(a)::S(G)
- Tries
- Try
- S(B);
- Threat
- QAB1(C)
- Vars
- S(b);P_PINQ(C),P_SPINS(a),XS(G)::R1(I),XB(f)
- S(a);N_GUARD,P_SPINS(b)::QAR1(C),XS(a)
- S(b);P_PINQ(C),P_SPINS(a)::S(G)
- S(b);P_PINQ(C),P_SPINS(a)::R1(I),XB(f)
- S(b);N_SPINP(e),P_PINQ(C),P_SPINS(a)::S(G)
- Refutation
- S(b);N_SPINB(f),P_PINQ(C),P_SPINS(a)
- Try
- R(E);P_PINS(b),XS(a)
- Threat
- DUALS(2)
- Vars
- Q(h);N_SPINB(f),XR(I)::QAR1(C)
- Q(h);N_SPINB(f)::QAR1(C)
- Q(h);::QAR1(C)
- Refutation
- Q(h);XS(G)
- Try
- R(I);CHECK,XB(f)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINS(b),XR(I)
- Try
- Actual
- S(B);
- Threat
- QAB1(C)
- Vars
- S(b);P_PINQ(C),P_SPINS(a),XS(G)::R1(I),XB(f)
- S(a);N_GUARD,P_SPINS(b)::QAR1(C),XS(a)
- S(b);P_PINQ(C),P_SPINS(a)::S(G)
- S(b);P_PINQ(C),P_SPINS(a)::R1(I),XB(f)
- S(b);N_SPINP(e),P_PINQ(C),P_SPINS(a)::S(G)
- S(b);N_SPINB(f),P_PINQ(C),P_SPINS(a),S_CUTQ(h)::B(H),XP(e)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).