MESON Chess Problem Database
Problem Display
PID: 168429 (b1R2B2/2r4q/4B3/4p2R/1n1kN3/br4p1/1P2Q3/4N1K1 w - - 0 1)
Petite, Efren
Sachova skladba, 1999
#2
9 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxb2
- 2.Sf3#
- 1...Rf3
- 2.Sxf3#
- 1...Rc4
- 2.Rxc4#
- 1...Rc5
- 2.Bxc5#
- 1...Ra7
- 2.Bc5#
- 2.Rc4#
- 1...Rb7
- 2.Bc5#
- 2.Rc4#
- 1...Rd7
- 2.Bc5#
- 2.Rc4#
- 1...Re7
- 2.Rc4#
- 1...Rf7
- 2.Bc5#
- 2.Rc4#
- 1...Rg7
- 2.Bc5#
- 2.Rc4#
- 1...Bc6
- 2.Bc5#
- 1...Sd3
- 2.Sf3#
- 1...Sc6
- 2.Sc2#
- 1...Rxb2
- Tries
- 1.Sd2?
- threat
- 2.Sxb3#
- 2.Qxe5#
- 1...Qxh5
- 2.Sxb3#
- 1...Rxb2
- 2.Qxe5#
- 1...Bxb2
- 2.Qxe5#
- 1...Qc2
- 2.Qxe5#
- 1...Qd3
- 2.Qxe5#
- 1...Qe4
- 2.Sxb3#
- 1...Qf5
- 2.Sxb3#
- 1...Qg7
- 2.Sxb3#
- 1...Qh8
- 2.Sxb3#
- 1...Rbc3
- 2.Qxe5#
- 1...Rd3
- 2.Qxe5#
- 1...Rf3
- 2.Qxe5#
- 1...Rcc3
- 2.Qxe5#
- 1...Rc5
- 2.Sxb3#
- 2.Bxc5#
- 1...Be4
- 2.Sxb3#
- 1...Bd5
- 2.Qxe5#
- 1...Sd3
- 2.Sxb3#
- 1...Sc6
- 2.Sxb3#
- 1...e4
- 2.Sxb3#
- 1...Re3!
- threat
- 1.Sc5?
- threat
- 2.Sxb3#
- 2.Qxe5#
- 1...Qxh5
- 2.Sxb3#
- 1...Rxb2
- 2.Qxe5#
- 1...Rxc5
- 2.Bxc5#
- 1...Bxb2
- 2.Qxe5#
- 1...Qc2
- 2.Qxe5#
- 1...Qd3
- 2.Qxe5#
- 1...Qe4
- 2.Sxb3#
- 1...Qf5
- 2.Sxb3#
- 1...Qg7
- 2.Sxb3#
- 1...Qh8
- 2.Sxb3#
- 1...Rc3
- 2.Qxe5#
- 1...Rd3
- 2.Qxe5#
- 1...Re3
- 2.Qc4#
- 1...Rf3
- 2.Qxe5#
- 1...Be4
- 2.Sxb3#
- 1...Sd3
- 2.Sc2#
- 2.Sxb3#
- 1...Sd5
- 2.Sxb3#
- 1...Sc6
- 2.Sxb3#
- 1...e4
- 2.Sxb3#
- 1...Bd5!
- threat
- 1.Rxc7?
- threat
- 2.Bc5#
- 2.Rc4#
- 1...Re3
- 2.Rc4#
- 2.Qc4#
- 1...Qe7
- 2.Rc4#
- 1...Rc3
- 2.bxc3#
- 1...Bd5
- 2.Bc5#
- 1...Bc6
- 2.Bc5#
- 1...Sa2
- 2.Sc2#
- 2.Rc4#
- 1...Sc2
- 2.Sxc2#
- 2.Rc4#
- 1...Sd3
- 2.Sc2#
- 2.Sf3#
- 2.Rc4#
- 1...Sd5
- 2.Sc2#
- 2.Rc4#
- 1...Sa6
- 2.Sc2#
- 2.Rc4#
- 1...Sc6
- 2.Sc2#
- 1...Qxc7!
- threat
- 1.Sd2?
- Keys
- 1.Sc3!
- threat
- 2.Sb5#
- 2.Qxe5#
- 1...Qxh5
- 2.Sb5#
- 1...Rbxc3
- 2.Qxe5#
- 1...Rcxc3
- 2.Qxe5#
- 1...Qe7
- 2.Qxe5#
- 1...Qd3
- 2.Qxe5#
- 1...Qe4
- 2.Sb5#
- 1...Qf5
- 2.Sb5#
- 1...Qd7
- 2.Qxe5#
- 1...Qg7
- 2.Sb5#
- 1...Qh8
- 2.Sb5#
- 1...Rc5
- 2.Bxc5#
- 1...Rb7
- 2.Sf3#
- 2.Bc5#
- 2.Rc4#
- 2.Qxe5#
- 1...Be4
- 2.Sb5#
- 1...Bd5
- 2.Sb5#
- 1...Bc6
- 2.Qxe5#
- 1...Sa2
- 2.Qxe5#
- 1...Sc2
- 2.Qxe5#
- 1...Sd3
- 2.Sc2#
- 1...Sd5
- 2.Sf3#
- 1...Sa6
- 2.Qxe5#
- 1...Sc6
- 2.Sf3#
- 1...e4
- 2.Sb5#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 17
- REMOVED MATES = 4
- Sets
- R(b);N_GUARD,XP(C)::S(A)
- R(b);N_GUARD::S(A),XR(b)
- R(g);OGATE::R1(H),XR(g)
- R(g);N_GUARD::B(I),XR(g)
- R(g);OGATE::R1(H)
- B(i);S_CUTR(g)::B(I)
- S(d);S_CUTR(b)::S(A)
- S(d);N_GUARD,S_CUTR(g)::S(A)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(h);XR(F)::S(E),XR(b)
- R(b);XP(C)::QAB1(D),XP(f)
- B(a);XP(C)::QAB1(D),XP(f)
- Q(h);::QAB1(D),XP(f)
- Q(h);::S(E),XR(b)
- R(b);::QAB1(D),XP(f)
- R(g);::QAB1(D),XP(f)
- B(i);::S(E),XR(b)
- B(i);::QAB1(D),XP(f)
- S(d);::S(E),XR(b)
- P(f);::S(E),XR(b)
- Refutation
- R(b);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(h);XR(F)::S(E),XR(b)
- R(b);XP(C)::QAB1(D),XP(f)
- R(g);OGATE,XS(E)::B(I),XR(g)
- B(a);XP(C)::QAB1(D),XP(f)
- Q(h);::QAB1(D),XP(f)
- Q(h);::S(E),XR(b)
- R(b);::QAB1(D),XP(f)
- R(b);SBLOCK::QAR1(D)
- B(i);::S(E),XR(b)
- S(d);::S(E),XR(b)
- P(f);::S(E),XR(b)
- Refutation
- B(i);
- Try
- R(H);XR(g)
- Threat
- DUALS(2)
- Vars
- Q(h);::R1(H)
- R(b);OGATE::P(C),XR(b)
- B(i);::B(I)
- S(d);N_GUARD::S(A)
- Refutation
- Q(h);XR(H)
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(h);XR(F)::S(E)
- R(b);XS(E)::QAB1(D),XP(f)
- R(g);XS(E)::QAB1(D),XP(f)
- Q(h);::QAB1(D),XP(f)
- Q(h);::S(E)
- R(g);N_GUARD::B(I),XR(g)
- B(i);::S(E)
- B(i);::QAB1(D),XP(f)
- S(d);::QAB1(D),XP(f)
- S(d);N_GUARD,S_CUTQ(h)::S(A)
- S(d);S_CUTB(i)::S(A)
- P(f);::S(E)
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).