MESON Chess Problem Database
Problem Display
PID: 141271 (8/1p2p2p/bK3p1P/1pQ3BN/1RpnkPP1/8/3Pn3/4N3 w - - 0 1)
Andrade, Barry Jack da Costa
Source?, 1924
#2
10 + 10
| 14867 | BCPS Library | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Sg3#
- 1...Sg1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sxf4
- 2.Sg3#
- 1...Sc2
- 2.d3#
- 1...Sb3
- 2.d3#
- 1...Sf3
- 2.d3#
- 1...Sf5
- 2.d3#
- 1...Sc6
- 2.d3#
- 1...Se6
- 2.d3#
- 1...c3
- 2.Qf5#
- 1...fxg5
- 2.Qe5#
- 1...f5
- 2.Qe5#
- 1...e5
- 2.Sxf6#
- 1...e6
- 2.Sxf6#
- 1...Sc1
- Tries
- 1.Bxf6?
- threat
- 2.Qe5#
- 1...Sf3
- 2.Qf5#
- 2.d3#
- 1...Sc6
- 2.Qf5#
- 2.d3#
- 1...e5
- 2.Qxe5#
- 1...exf6!
- threat
- 1.Rxc4?
- threat
- 2.Qf5#
- 1...Sg3
- 2.Sxg3#
- 2.Rxd4#
- 2.Qxd4#
- 1...f5
- 2.Qe5#
- 2.Qxf5#
- 1...e5
- 2.Sxf6#
- 1...e6
- 2.Sxf6#
- 1...bxc4!
- threat
- 1.Qxe7+?
- 1...Kd5
- 2.Sxf6#
- 1...Se6!
- 1...Kd5
- 1.Qxc4?
- threat
- 2.Qe6#
- 1...Sxf4
- 2.Qxd4#
- 1...e5
- 2.Sxf6#
- 1...e6
- 2.Sxf6#
- 2.Qxe6#
- 1...bxc4!
- threat
- 1.f5?
- 1...Sxf5
- 2.d3#
- 1...Sc1
- 2.Sg3#
- 1...Sg1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sf4
- 2.Sg3#
- 1...Sc2
- 2.d3#
- 1...Sb3
- 2.d3#
- 1...Sf3
- 2.d3#
- 1...Sc6
- 2.d3#
- 1...Se6
- 2.d3#
- 1...c3
- 2.d3#
- 1...e5
- 2.Sxf6#
- 1...e6
- 2.Sxf6#
- 1...fxg5!
- 1...Sxf5
- 1.Bxf6?
- Keys
- 1.Qd6!
- 1...Sxf4
- 2.Sg3#
- 1...fxg5
- 2.Qe5#
- 1...exd6
- 2.Sxf6#
- 1...Sc1
- 2.Sg3#
- 1...Sg1
- 2.Sg3#
- 1...Sc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sc2
- 2.Qd3#
- 1...Sb3
- 2.Qd3#
- 1...Sf3
- 2.Qd3#
- 1...Sf5
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...c3
- 2.Qe6#
- 1...f5
- 2.Qe5#
- 1...e5
- 2.Sxf6#
- 1...e6
- 2.Sxf6#
- 1...Sxf4
- 1.Qd6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(a);N_GUARD,XP(D)::S(H)
- S(c);P_SPINP(b)::P(B)
- P(b);P_SPINS(c)::QAB1(F)
- P(g);N_GUARD,XB(G)::QAR1(F)
- P(g);N_GUARD::QAR1(F)
- P(i);N_GUARD::S(H),XP(g)
- Tries
- Try
- B(G);XP(g)
- Threat
- QAR1(F)
- Vars
- P(i);::QAR1(F),XP(i)
- Refutation
- P(i);XB(G)
- Try
- R(C);P_PINS(c),XP(b)
- Threat
- QAB1(F)
- Vars
- P(i);N_GUARD::S(H),XP(g)
- Refutation
- P(e);N_SPINS(c),XR(C)
- Try
- Q(F);CHECK,XP(i)
- Vars
- K(d);S_FLIGHT::S(H),XP(g)
- Refutation
- S(c);P_SPINP(b),P_SPINS(c)
- Try
- Q(F);P_PINS(c),XP(b)
- Threat
- QAR2(F)
- Vars
- S(a);N_GUARD,XP(D)::QAR1(F),XS(c)
- P(i);N_GUARD::S(H),XP(g)
- Refutation
- P(e);N_SPINS(c),XQ(F)
- Try
- P(D);
- Vars
- S(c);P_SPINP(b),XP(D)::P(B)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);P_SPINP(b)::P(B)
- P(b);N_GUARD,P_SPINS(c)::P(B)
- P(i);N_GUARD::S(H),XP(g)
- Refutation
- P(g);XB(G)
- Try
- Actual
- Q(F);
- Vars
- S(a);N_GUARD,XP(D)::S(H)
- P(g);N_GUARD,XB(G)::QAR1(F)
- P(i);N_GUARD,XQ(F)::S(H),XP(g)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(c);OGATE,P_SPINP(b)::QAB1(F)
- P(b);P_SPINS(c)::QAR2(F)
- P(g);N_GUARD::QAR1(F)
- P(i);N_GUARD::S(H),XP(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).