MESON Chess Problem Database
Problem Display
PID: 201375 (bQ4n1/4b3/5pKp/1N1p1Rp1/Rnr1k1B1/5r1P/4P3/6Bq w - - 0 1)
Bermudez, Rafael J
L'Alfiere di Re, 1922
#2
9 + 12
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.Bxf3#
- 1...Rxf5
- 2.Bxf5#
- 1...Bd6
- 2.Sxd6#
- 1...Bd8
- 2.Sd6#
- 1...Sd3
- 2.Sc3#
- 1...Qh2
- Tries
- 1.Rf4+?
- 1...gxf4
- 2.Bf5#
- 1...Rxf4!
- 1...gxf4
- 1.Qxg8?
- threat
- 2.Qe6#
- 1...Rc6
- 2.Qxd5#
- 1...Qh2
- 2.Bxf3#
- 1...Bd6
- 2.Sxd6#
- 1...Sd3
- 2.Sc3#
- 1...Sc6
- 2.Qxd5#
- 1...Rxf5!
- threat
- 1.Rf4+?
- Keys
- 1.Qd6!
- threat
- 2.Qe6#
- 1...Rxf5
- 2.Bxf5#
- 1...Bxd6
- 2.Sxd6#
- 1...Qh2
- 2.Bxf3#
- 1...Rc6
- 2.Qxd5#
- 1...Sd3
- 2.Sc3#
- 1...Sc6
- 2.Qxd5#
- threat
- 1.Qd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- Q(a);N_GUARD::B(E),XR(b)
- R(b);OGATE,XR(G)::B(E),XR(b)
- B(j);N_GUARD::S(F),XB(j)
- B(j);N_GUARD::S(F)
- S(c);P_SPINR(d),S_CUTR(b)::S(F)
- Tries
- Try
- R(G);CHECK
- Vars
- P(g);XR(G)::B(E)
- Refutation
- R(b);XR(G)
- Try
- Q(I);XS(l)
- Threat
- QAR2(I)
- Vars
- R(d);P_SPINS(c),S_CUTB(k)::QAB1(I),XP(f)
- Q(a);N_GUARD::B(E),XR(b)
- B(j);N_GUARD::S(F),XB(j)
- S(c);P_SPINR(d),S_CUTR(b)::S(F)
- S(c);N_GUARD,P_SPINR(d),S_CUTB(k)::QAB1(I),XP(f)
- Refutation
- R(b);XR(G)
- Try
- Actual
- Q(I);
- Threat
- QAR2(I)
- Vars
- R(b);OGATE,XR(G)::B(E),XR(b)
- B(j);XQ(I)::S(F),XB(j)
- Q(a);N_GUARD::B(E),XR(b)
- R(d);P_SPINS(c),S_CUTB(k)::QAB1(I),XP(f)
- S(c);P_SPINR(d),S_CUTR(b)::S(F)
- S(c);N_GUARD,P_SPINR(d),S_CUTB(k)::QAB1(I),XP(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).