MESON Chess Problem Database
Problem Display
PID: 3015 (2Q5/3p4/3p4/pKb1p3/Rn1kBP2/4nPN1/8/1N2r3 w - - 0 1)
Williams, Philip Hamilton
Morning Post, 1916
#2
8 + 9
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Rxb1
- 2.Se2#
- 1...Rc1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Rf1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 1...Rh1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Bb6
- 2.Qc3#
- 1...Ba7
- 2.Qc3#
- 1...Sd1
- 2.Sf5#
- 1...Sf1
- 2.Sf5#
- 1...Sc2
- 2.Sf5#
- 1...Sg2
- 2.Sf5#
- 1...Sc4
- 2.Sf5#
- 1...Sg4
- 2.Sf5#
- 1...Sd5
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...exf4
- 2.Qh8#
- 1...d5
- 2.Qxc5#
- 1...Rxb1
- Tries
- 1.Ra3?
- 1...Rxb1
- 2.Se2#
- 1...exf4
- 2.Qh8#
- 1...Sbc2
- 2.Rd3#
- 1...Rc1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Rf1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 1...Rh1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Bb6
- 2.Qc3#
- 1...Ba7
- 2.Qc3#
- 1...Sd1
- 2.Sf5#
- 1...Sf1
- 2.Sf5#
- 1...Sec2
- 2.Sf5#
- 1...Sg2
- 2.Sf5#
- 1...Sc4
- 2.Sf5#
- 1...Sg4
- 2.Sf5#
- 1...Sed5
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sa2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sbd5
- 2.Rd3#
- 1...Sa6
- 2.Rd3#
- 1...Sc6
- 2.Rd3#
- 1...d5
- 2.Qxc5#
- 1...a4!
- 1...Rxb1
- 1.Qc7?
- 1...Rxb1
- 2.Se2#
- 1...Sd1
- 2.Sf5#
- 1...Sf1
- 2.Sf5#
- 1...Sc2
- 2.Sf5#
- 1...Sg2
- 2.Sf5#
- 1...Sc4
- 2.Sf5#
- 1...Sg4
- 2.Sf5#
- 1...Sd5
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Rc1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Rf1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 1...Rh1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Bb6
- 2.Qxb6#
- 2.Qc3#
- 1...Ba7
- 2.Qc3#
- 2.Qxa7#
- 1...d5
- 2.Qxe5#
- 2.Qxc5#
- 1...exf4!
- 1...Rxb1
- 1.Ra3?
- Keys
- 1.Qb8!
- 1...Rxb1
- 2.Se2#
- 1...exf4
- 2.Qh8#
- 1...Sd1
- 2.Sf5#
- 1...Sf1
- 2.Sf5#
- 1...Sc2
- 2.Sf5#
- 1...Sg2
- 2.Sf5#
- 1...Sc4
- 2.Sf5#
- 1...Sg4
- 2.Sf5#
- 1...Sd5
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...d5
- 2.Qxe5#
- 1...Rc1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Rf1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 1...Rh1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Bb6
- 2.Qxb6#
- 1...Ba7
- 2.Qxa7#
- 1...Rxb1
- 1.Qb8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD,XS(A)::S(C)
- R(a);N_GUARD::S(C)
- R(a);N_GUARD::S(C),XR(a)
- B(f);OGATE::QAB1(H)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD,N_SPINS(c)::S(C)
- S(b);N_GUARD::S(C),XS(b)
- P(g);OGATEB,XP(F)::QAB(H)
- P(h);N_GUARD::QAB1(H),XB(f)
- Tries
- Try
- R(D);N_PINS(c)
- Vars
- R(a);N_GUARD,XS(A)::S(C)
- P(g);OGATEB,XP(F)::QAB(H)
- S(c);N_GUARD::R1(D)
- R(a);N_GUARD::S(C)
- R(a);N_GUARD::S(C),XR(a)
- B(f);OGATE::QAB1(H)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- S(c);N_GUARD::R1(D),XS(c)
- P(h);N_GUARD::QAB1(H),XB(f)
- Refutation
- P(e);
- Try
- Q(H);
- Vars
- R(a);N_GUARD,XS(A)::S(C)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD,N_SPINS(c)::S(C)
- S(b);N_GUARD::S(C),XS(b)
- R(a);N_GUARD::S(C)
- R(a);N_GUARD::S(C),XR(a)
- Refutation
- P(g);XP(F)
- Try
- Actual
- Q(H);
- Vars
- R(a);N_GUARD,XS(A)::S(C)
- P(g);OGATEB,XP(F)::QAB(H)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD,N_SPINS(c)::S(C)
- S(b);N_GUARD::S(C),XS(b)
- P(h);OGATE::QAB1(H),XP(g)
- R(a);N_GUARD::S(C)
- R(a);N_GUARD::S(C),XR(a)
- B(f);OGATEB::QAB(H),XB(f)
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).