MESON Chess Problem Database
Problem Display
PID: 3133 (5K2/1n3pN1/QB2pk2/1P5P/3P1rpP/5bP1/5N2/5R2 w - - 0 1)
Williams, Philip Hamilton
Sussex Chess Problem Fraternity, 1918
#2
11 + 7
| 15 | British Chess Magazine | 1918 |
| 2681 | All Change Here! | 1919 |
| 3713 | Snap | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Bxd4#
- 1...Re4
- 2.Sxe4#
- 1...Rf5
- 2.Se8#
- 1...Bd1
- 2.Se4#
- 1...Bh1
- 2.Sxg4#
- 1...Be2
- 2.Se4#
- 1...Bg2
- 2.Sxg4#
- 1...Be4
- 2.Sxe4#
- 2.Sxg4#
- 1...Bd5
- 2.Sxg4#
- 1...Bc6
- 2.Sxg4#
- 1...Sa5
- 2.Bd8#
- 1...Sc5
- 2.Bd8#
- 1...Sd6
- 2.Bd8#
- 1...Sd8
- 2.Bxd8#
- 1...e5
- 2.Bd8#
- 1...Rxd4
- Tries
- 1.Bc7?
- threat
- 2.Be5#
- 1...Re4
- 2.Sxe4#
- 1...Rf5
- 2.Se8#
- 1...Sd6
- 2.Bd8#
- 1...Rxd4!
- threat
- 1.Qxb7?
- threat
- 2.Bd8#
- 2.Qe7#
- 2.Qxf7#
- 1...Bxb7
- 2.Sxg4#
- 2.Bd8#
- 1...Rxd4!
- threat
- 1.Qa2?
- 1...Re4
- 2.Sxe4#
- 1...Rf5
- 2.Se8#
- 1...Bd1
- 2.Se4#
- 1...Bh1
- 2.Sxg4#
- 1...Be2
- 2.Se4#
- 1...Bg2
- 2.Sxg4#
- 1...Be4
- 2.Sxe4#
- 2.Sxg4#
- 1...Bd5
- 2.Sxg4#
- 1...Bc6
- 2.Sxg4#
- 1...Sa5
- 2.Bd8#
- 1...Sc5
- 2.Bd8#
- 1...Sd6
- 2.Bd8#
- 1...Sd8
- 2.Bxd8#
- 1...e5
- 2.Qxf7#
- 1...Rxd4!
- 1...Re4
- 1.Qa3?
- threat
- 2.Qe7#
- 1...Sc5
- 2.Bd8#
- 1...Sd6
- 2.Bd8#
- 1...Rxd4!
- threat
- 1.gxf4?
- 1...Bd1
- 2.Se4#
- 1...Bh1
- 2.Sxg4#
- 1...Be2
- 2.Se4#
- 1...Bg2
- 2.Sxg4#
- 1...Be4
- 2.Sxe4#
- 2.Sxg4#
- 1...Bd5
- 2.Sxg4#
- 1...Bc6
- 2.Sxg4#
- 1...Sa5
- 2.Bd8#
- 1...Sc5
- 2.Bd8#
- 1...Sd6
- 2.Bd8#
- 1...Sd8
- 2.Bxd8#
- 1...e5
- 2.Bd8#
- 2.dxe5#
- 2.fxe5#
- 1...g3!
- 1...Bd1
- 1.Bc7?
- Keys
- 1.Qa1!
- 1...Rxd4
- 2.Sxg4#
- 1...Re4
- 2.Sxe4#
- 1...Rf5
- 2.Se8#
- 1...Bd1
- 2.Se4#
- 1...Bh1
- 2.Sxg4#
- 1...Be2
- 2.Se4#
- 1...Bg2
- 2.Sxg4#
- 1...Be4
- 2.Sxe4#
- 2.Sxg4#
- 1...Bd5
- 2.Sxg4#
- 1...Bc6
- 2.Sxg4#
- 1...Sa5
- 2.Bd8#
- 1...Sc5
- 2.Bd8#
- 1...Sd6
- 2.Bd8#
- 1...Sd8
- 2.Bxd8#
- 1...e5
- 2.dxe5#
- 1...Rxd4
- 1.Qa1!
Anticipated by 141401(1882)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);OGATE,XP(D)::B(I),XR(b)
- R(b);N_GUARD,S_CUTB(a)::S(B),XR(b)
- R(b);SBLOCK::S(J)
- B(a);N_GUARD,S_CUTR(b)::S(B)
- B(a);N_GUARD,S_CUTR(b)::S(B),XP(c)
- S(f);N_GUARD::B(I)
- S(f);N_GUARD::B(I),XS(f)
- P(d);::QAR(H)+B(I),DCHECK
- Tries
- Try
- B(I);P_PINP(d)
- Threat
- B(I)
- Vars
- R(b);N_GUARD,S_CUTB(a)::S(B),XR(b)
- R(b);SBLOCK::S(J)
- S(f);N_GUARD,N_SPINP(d)::B(I)
- Refutation
- R(b);XP(D)
- Try
- Q(H);XS(f)
- Threat
- DUALS(3)
- Refutation
- R(b);XP(D)
- Try
- Q(H);
- Vars
- R(b);N_GUARD,S_CUTB(a)::S(B),XR(b)
- R(b);SBLOCK::S(J)
- B(a);N_GUARD,S_CUTR(b)::S(B)
- B(a);N_GUARD,S_CUTR(b)::S(B),XP(c)
- S(f);N_GUARD::B(I)
- S(f);N_GUARD::B(I),XS(f)
- P(d);OGATE::QAR1(H),XP(g)
- Refutation
- R(b);XP(D)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- S(f);N_GUARD::B(I)
- Refutation
- R(b);XP(D)
- Try
- P(C);XR(b)
- Vars
- B(a);N_GUARD::S(B)
- B(a);N_GUARD::S(B),XP(c)
- S(f);N_GUARD::B(I)
- S(f);N_GUARD::B(I),XS(f)
- Refutation
- P(c);
- Try
- Actual
- Q(H);
- Vars
- R(b);N_GUARD,P_SPINR(b),S_CUTB(a),XP(D)::S(B),XP(c)
- R(b);N_GUARD,S_CUTB(a)::S(B),XR(b)
- R(b);SBLOCK::S(J)
- B(a);N_GUARD,S_CUTR(b)::S(B)
- B(a);N_GUARD,S_CUTR(b)::S(B),XP(c)
- S(f);N_GUARD::B(I)
- S(f);N_GUARD::B(I),XS(f)
- P(d);OGATE::P(D),XP(d)
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).