MESON Chess Problem Database
Problem Display
PID: 198374 (2N5/p7/Kn6/1PR5/3kPQn1/3P2P1/1N6/8 w - - 0 1)
Smith, William James
Australasian Chess Magazine, 1920
#2
9 + 4
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Kxc5
- 2.Qd6#
- 1...Sf2
- 2.Qxf2#
- 1...Sh2
- 2.Qf2#
- 1...Se3
- 2.Qe5#
- 1...Se5
- 2.Qf2#
- 1...Sf6
- 2.Qf2#
- 1...Sh6
- 2.Qf2#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...Sxc8
- 2.Rc4#
- 1...Kxc5
- Tries
- 1.Ka5?
- 1...Sc4+
- 2.Rxc4#
- 1...Kxc5
- 2.Qd6#
- 1...Sxc8
- 2.Rc4#
- 1...Sf2
- 2.Qxf2#
- 1...Sh2
- 2.Qf2#
- 1...Se3
- 2.Qe5#
- 1...Se5
- 2.Qf2#
- 1...Sf6
- 2.Qf2#
- 1...Sh6
- 2.Qf2#
- 1...Sa4
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...a6!
- 1...Sc4+
- 1.Sd1?
- 1...Kxc5
- 2.Qd6#
- 1...Sxc8
- 2.Rd5#
- 1...Sf2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Se5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sh6
- 2.Qe3#
- 1...Sa4
- 2.Rd5#
- 2.Qd6#
- 1...Sc4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sd7
- 2.Rd5#
- 2.Qd6#
- 1...Sa8
- 2.Rd5#
- 2.Qd6#
- 1...Kxd3!
- 1...Kxc5
- 1.Sxb6?
- threat
- 2.Rc4#
- 1...Se3
- 2.Qe5#
- 1...Se5
- 2.Qf2#
- 1...Kxc5!
- threat
- 1.Sd6?
- 1...Sc4
- 2.Rxc4#
- 1...Sf2
- 2.Qxf2#
- 1...Sh2
- 2.Qf2#
- 1...Se3
- 2.Qe5#
- 1...Se5
- 2.Qf2#
- 1...Sf6
- 2.Qf2#
- 1...Sh6
- 2.Qf2#
- 1...Sa4
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...Sc8
- 2.Rc4#
- 1...Kxc5!
- 1...Sc4
- 1.Sxa7?
- 1...Sc4
- 2.Rxc4#
- 1...Sf2
- 2.Qxf2#
- 1...Sh2
- 2.Qf2#
- 1...Se3
- 2.Qe5#
- 1...Se5
- 2.Qf2#
- 1...Sf6
- 2.Qf2#
- 1...Sh6
- 2.Qf2#
- 1...Sa4
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...Sc8
- 2.Rc4#
- 1...Kxc5!
- 1...Sc4
- 1.Se7?
- 1...Sc4
- 2.Rxc4#
- 1...Sf2
- 2.Qxf2#
- 1...Sh2
- 2.Qf2#
- 1...Se3
- 2.Qe5#
- 1...Se5
- 2.Qf2#
- 1...Sf6
- 2.Qf2#
- 1...Sh6
- 2.Qf2#
- 1...Sa4
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...Sc8
- 2.Rc4#
- 1...Kxc5!
- 1...Sc4
- 1.Qc1?
- 1...Sxc8
- 2.Rd5#
- 1...Sc4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sh2
- 2.Qg1#
- 1...Se3
- 2.Qc3#
- 1...Se5
- 2.Qg1#
- 1...Sf6
- 2.Qg1#
- 1...Sh6
- 2.Qg1#
- 1...Sa4
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sa8
- 2.Rd5#
- 1...Sf2!
- 1...Sxc8
- 1.Ka5?
- Keys
- 1.Qd2!
- 1...Kxc5
- 2.d4#
- 1...Sxc8
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sf2
- 2.Qxf2#
- 1...Sh2
- 2.Qf2#
- 1...Se3
- 2.Qc3#
- 1...Se5
- 2.Qf2#
- 1...Sf6
- 2.Qf2#
- 1...Sh6
- 2.Qf2#
- 1...Sa4
- 2.Rd5#
- 1...Sc4
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sa8
- 2.Rd5#
- 1...Kxc5
- 1.Qd2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT,XR(G)::QAB1(E)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAB(E)
- S(b);N_GUARD,SBLOCK::QAB1(E)
- S(c);N_GUARD::R1(G)
- S(c);N_GUARD::R1(G),XS(c)
- S(c);N_GUARD,XS(I)::R1(G)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- S(c);CHECK,N_GUARD::R1(G),XS(c)
- K(a);S_FLIGHT,XR(G)::QAB1(E)
- S(c);N_GUARD,XS(I)::R1(G)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAB(E)
- S(b);N_GUARD,SBLOCK::QAB1(E)
- S(c);N_GUARD::R1(G)
- Refutation
- P(d);
- Try
- S(A);
- Vars
- K(a);S_FLIGHT,XR(G)::QAB1(E)
- S(c);N_GUARD,XS(I)::R1(G)
- S(b);N_GUARD::QAB1(E)
- S(b);N_GUARD::QAB1(E),XS(b)
- S(c);N_GUARD::R1(G)
- S(c);N_GUARD::R1(G),XS(c)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- S(I);XS(c)
- Threat
- R1(G)
- Vars
- S(b);N_GUARD,SBLOCK::QAB1(E)
- S(b);N_GUARD::QAB(E)
- Refutation
- K(a);S_FLIGHT,XR(G)
- Try
- S(I);
- Vars
- S(c);N_GUARD::R1(G),XS(c)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAB(E)
- S(b);N_GUARD,SBLOCK::QAB1(E)
- S(c);N_GUARD::R1(G)
- Refutation
- K(a);S_FLIGHT,XR(G)
- Try
- S(I);XP(d)
- Vars
- S(c);N_GUARD::R1(G),XS(c)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAB(E)
- S(b);N_GUARD,SBLOCK::QAB1(E)
- S(c);N_GUARD::R1(G)
- Refutation
- K(a);S_FLIGHT,XR(G)
- Try
- S(I);
- Vars
- S(c);N_GUARD::R1(G),XS(c)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAB(E)
- S(b);N_GUARD,SBLOCK::QAB1(E)
- S(c);N_GUARD::R1(G)
- Refutation
- K(a);S_FLIGHT,XR(G)
- Try
- Q(E);
- Vars
- S(c);N_GUARD,XS(I)::R1(G)
- S(c);N_GUARD::R1(G)
- S(c);N_GUARD::R1(G),XS(c)
- S(b);N_GUARD::QAB(E)
- S(b);SBLOCK::QAB1(E)
- Refutation
- S(b);
- Try
- Actual
- Q(E);
- Vars
- K(a);OGATE,S_FLIGHT,XR(G)::P(B)
- S(c);N_GUARD,XS(I)::R1(G)
- S(c);N_GUARD::R1(G),XS(c)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAB(E)
- S(b);SBLOCK::QAB1(E)
- S(c);N_GUARD::R1(G)
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).