MESON Chess Problem Database
Problem Display
PID: 216564 (r7/pQ6/2RbRP1N/3p4/3k4/N1nB2n1/4PP2/K2b4 w - - 0 1)
Wilson, Francis Vaux
Deutsche Schachzeitung, 1958
#2
10 + 8
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bc2
- 2.Sxc2#
- 1...Bb4
- 2.Qxb4#
- 1...Bf4
- 2.Qb4#
- 1...Be5
- 2.Qb4#
- 1...Bc7
- 2.Qb4#
- 1...Bb8
- 2.Qb4#
- 1...Sb1
- 2.Sb5#
- 1...Sa2
- 2.Sb5#
- 1...Sa4
- 2.Sb5#
- 1...Sce4
- 2.Sb5#
- 1...Sb5
- 2.Sxb5#
- 1...Sf1
- 2.Sf5#
- 1...Sh1
- 2.Sf5#
- 1...Sge4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sh5
- 2.Sf5#
- 1...Bc2
- Tries
- 1.Bb1?
- threat
- 2.e3#
- 1...Sxb1
- 2.Sb5#
- 1...Scxe2
- 2.Sb5#
- 1...Sgxe2
- 2.Sf5#
- 1...Bc2
- 2.Sxc2#
- 1...Bf4
- 2.Qb4#
- 1...Sf1
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Bxe2!
- threat
- 1.Bc2?
- threat
- 2.e3#
- 1...Bxc2
- 2.Sxc2#
- 1...Scxe2
- 2.Sb5#
- 1...Sgxe2
- 2.Sf5#
- 1...Bf4
- 2.Qb4#
- 1...Sf1
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Bxe2!
- threat
- 1.Ba6?
- threat
- 2.e3#
- 1...Bxe2
- 2.Sc2#
- 1...Sgxe2
- 2.Sf5#
- 1...Be5
- 2.Qb4#
- 1...Bf4
- 2.Qb4#
- 1...Sb5
- 2.Sxb5#
- 1...Sf1
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Scxe2!
- threat
- 1.Bg6?
- threat
- 2.e3#
- 1...Bxe2
- 2.Sc2#
- 1...Scxe2
- 2.Sb5#
- 1...Bf4
- 2.Qb4#
- 1...Sce4
- 2.Sb5#
- 1...Sf1
- 2.Sf5#
- 1...Sge4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sgxe2!
- threat
- 1.Bh7?
- threat
- 2.e3#
- 1...Bxe2
- 2.Sc2#
- 1...Scxe2
- 2.Sb5#
- 1...Bf4
- 2.Qb4#
- 1...Sce4
- 2.Sb5#
- 1...Sf1
- 2.Sf5#
- 1...Sge4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sgxe2!
- threat
- 1.Qb1?
- threat
- 2.e3#
- 1...Sxb1
- 2.Sb5#
- 1...Scxe2
- 2.Sb5#
- 1...Sgxe2
- 2.Sf5#
- 1...Bf4
- 2.Qb4#
- 1...Bc2
- 2.Sxc2#
- 1...Sf1
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Bxe2!
- threat
- 1.Qb2?
- threat
- 2.Sb5#
- 2.Qxc3#
- 1...Bxe2
- 2.Qxc3#
- 1...Bxa3
- 2.Qxc3#
- 1...Rb8
- 2.Qxc3#
- 1...Ba4
- 2.Qxc3#
- 1...Bb4
- 2.Sb5#
- 2.Qxb4#
- 1...Bc5
- 2.Sb5#
- 1...Se4
- 2.Sb5#
- 2.Sf5#
- 1...a6
- 2.Qxc3#
- 1...Sxe2!
- threat
- 1.Qb5?
- threat
- 2.e3#
- 1...Bxe2
- 2.Sc2#
- 1...Sxb5
- 2.Sxb5#
- 1...Sgxe2
- 2.Sf5#
- 1...Bf4
- 2.Qb4#
- 2.Qc5#
- 1...Sf1
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Scxe2!
- threat
- 1.Qb6+?
- 1...Bc5
- 2.Qxc5#
- 1...axb6!
- 1...Bc5
- 1.Qxa7+?
- 1...Bc5
- 2.Qxc5#
- 1...Rxa7!
- 1...Bc5
- 1.Bb1?
- Keys
- 1.Be4!
- threat
- 2.e3#
- 1...Bxe2
- 2.Sc2#
- 1...Scxe2
- 2.Sb5#
- 1...Scxe4
- 2.Sb5#
- 1...Sgxe2
- 2.Sf5#
- 1...Sgxe4
- 2.Sf5#
- 1...dxe4
- 2.Rc4#
- 1...Be5
- 2.Qb4#
- 1...Bf4
- 2.Qb4#
- 1...Sf1
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- threat
- 1.Be4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 10
- Sets
- B(a);N_GUARD::S(D),XB(a)
- B(f);N_GUARD::QAR2(J),XB(f)
- B(f);N_GUARD::QAR2(J)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- Tries
- Try
- B(E);
- Threat
- P(B)
- Vars
- S(b);N_GUARD,XB(E)::S(D)
- S(b);N_GUARD,XP(B)::S(D)
- S(c);N_GUARD,XP(B)::S(I)
- B(a);N_GUARD::S(D),XB(a)
- B(f);N_GUARD::QAR2(J)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- Refutation
- B(a);XP(B)
- Try
- B(E);
- Threat
- P(B)
- Vars
- B(a);XB(E)::S(D),XB(a)
- S(b);N_GUARD,XP(B)::S(D)
- S(c);N_GUARD,XP(B)::S(I)
- B(f);N_GUARD::QAR2(J)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- Refutation
- B(a);XP(B)
- Try
- B(E);
- Threat
- P(B)
- Vars
- B(a);N_GUARD,XP(B)::S(D)
- S(c);N_GUARD,XP(B)::S(I)
- B(f);N_GUARD::QAR2(J)
- S(b);N_GUARD::S(D),XS(b)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- Refutation
- S(b);XP(B)
- Try
- B(E);
- Threat
- P(B)
- Vars
- B(a);N_GUARD,XP(B)::S(D)
- S(b);N_GUARD,XP(B)::S(D)
- B(f);N_GUARD::QAR2(J)
- S(b);N_GUARD::S(D)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- Refutation
- S(c);XP(B)
- Try
- B(E);
- Threat
- P(B)
- Vars
- B(a);N_GUARD,XP(B)::S(D)
- S(b);N_GUARD,XP(B)::S(D)
- B(f);N_GUARD::QAR2(J)
- S(b);N_GUARD::S(D)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- Refutation
- S(c);XP(B)
- Try
- Q(J);
- Threat
- P(B)
- Vars
- S(b);N_GUARD,XQ(J)::S(D)
- S(b);N_GUARD,XP(B)::S(D)
- S(c);N_GUARD,XP(B)::S(I)
- B(f);N_GUARD::QAR2(J)
- B(a);N_GUARD::S(D),XB(a)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- Refutation
- B(a);XP(B)
- Try
- Q(J);P_PINS(b)
- Threat
- DUALS(2)
- Vars
- B(a);XP(B)::QAB1(J),XS(b)
- B(f);XS(D)::QAB1(J),XS(b)
- R(h);::QAB1(J),XS(b)
- B(a);::QAB1(J),XS(b)
- B(f);::S(D)
- P(g);::QAB1(J),XS(b)
- Refutation
- S(c);XP(B)
- Try
- Q(J);
- Threat
- P(B)
- Vars
- B(a);N_GUARD,XP(B)::S(D)
- S(b);XQ(J)::S(D),XS(b)
- S(c);N_GUARD,XP(B)::S(I)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- Refutation
- S(b);XP(B)
- Try
- Q(J);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAB1(J),XB(f)
- Refutation
- P(g);P_PINS(D),XQ(J)
- Try
- Q(J);CHECK,XP(g)
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAB1(J),XB(f)
- Refutation
- R(h);P_PINS(D),XQ(J)
- Try
- Actual
- B(E);
- Threat
- P(B)
- Vars
- B(a);N_GUARD,XP(B)::S(D)
- S(b);N_GUARD,XP(B)::S(D)
- S(b);N_GUARD,XB(E)::S(D)
- S(c);N_GUARD,XP(B)::S(I)
- S(c);N_GUARD,XB(E)::S(I)
- P(e);N_GUARD,XB(E)::R1(F)
- B(f);N_GUARD::QAR2(J)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
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).