MESON Chess Problem Database
Problem Display
PID: 16073 (3R3B/q1R1p3/1p3p1N/4kPpN/1r6/Qb1B1P2/6K1/b7 w - - 0 1)
Petraitis, Vadim
Probleemblad, 2000
#2
10 + 9
| 102 | Probleemblad | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Sf7#
- 2.Qxe7#
- 1...Rg4+
- 2.Sxg4#
- 1...Rb5
- 2.Sg4#
- 1...Bd4
- 2.Sg4#
- 1...Bd1
- 2.Sf7#
- 1...Bc2
- 2.Sf7#
- 1...Ba4
- 2.Sf7#
- 1...Bc4
- 2.Sg4#
- 1...Bf7
- 2.Sxf7#
- 1...e6
- 2.Sf7#
- 2.Bxf6#
- 1...Rc4
- Tries
- 1.Be4?
- threat
- 2.Sg4#
- 1...Bd5
- 2.Rxd5#
- 1...g4
- 2.Sxg4#
- 1...Rxe4!
- threat
- 1.Rc4?
- threat
- 2.Sg4#
- 2.Sf7#
- 1...Rxc4
- 2.Sf7#
- 1...Bxc4
- 2.Sg4#
- 1...g4
- 2.Sxg4#
- 2.Sf7#
- 2.f4#
- 1...e6
- 2.Sg4#
- 2.Bxf6#
- 1...Qd7!
- threat
- 1.Rc5+?
- 1...Bd5
- 2.Rcxd5#
- 2.Rdxd5#
- 1...bxc5!
- 1...Bd5
- 1.Rxe7+?
- 1...Be6
- 2.Sf7#
- 2.Bxf6#
- 2.Rxe6#
- 1...Qxe7!
- 1...Be6
- 1.Qb2+?
- 1...Rd4
- 2.Sg4#
- 1...Bxb2!
- 1...Rd4
- 1.Qxb4?
- threat
- 2.Sg4#
- 2.Qe1#
- 2.Qe4#
- 1...Qa4
- 2.Sg4#
- 1...Qa5
- 2.Sg4#
- 2.Qe4#
- 1...Qb7
- 2.Sg4#
- 1...Qa8
- 2.Sg4#
- 1...Bc3
- 2.Sg4#
- 2.Qxc3#
- 2.Qe4#
- 1...Bd4
- 2.Sg4#
- 2.Qxd4#
- 1...Bd1
- 2.Sg4#
- 2.Sf7#
- 2.Qxe7#
- 2.Qe4#
- 2.Qb5#
- 1...Bc4
- 2.Sg4#
- 2.Qe1#
- 1...Bd5
- 2.Sg4#
- 1...g4
- 2.Sxg4#
- 2.Qe1#
- 2.Qe4#
- 2.Qf4#
- 2.f4#
- 1...b5
- 2.Sg4#
- 2.Qe4#
- 1...Qa2+!
- threat
- 1.Qxa1+?
- 1...Rd4
- 2.Sg4#
- 2.Qxd4#
- 1...Qxa1!
- 1...Rd4
- 1.Qxb3?
- threat
- 2.Sf7#
- 2.Rd5#
- 2.Qd5#
- 2.Qe6#
- 1...Rg4+
- 2.Sxg4#
- 1...Rxb3
- 2.Sg4#
- 2.Sf7#
- 1...Qa5
- 2.Sf7#
- 2.Rxe7#
- 2.Qe6#
- 1...Qb7
- 2.Sf7#
- 2.Qe6#
- 1...Qa8
- 2.Sf7#
- 2.Rxe7#
- 2.Qe6#
- 1...Rc4
- 2.Sf7#
- 1...Rd4
- 2.Sf7#
- 2.Qe6#
- 1...Re4
- 2.Rd5#
- 2.Qd5#
- 2.Qe6#
- 2.Qb5#
- 1...Rb5
- 2.Sg4#
- 2.Sf7#
- 2.Qe6#
- 2.Qxb5#
- 1...e6
- 2.Sf7#
- 2.Bxf6#
- 2.Qxe6#
- 1...Qa2+!
- threat
- 1.f4+?
- 1...gxf4
- 2.Sg4#
- 1...Rxf4!
- 1...gxf4
- 1.Be4?
- Keys
- 1.Bc4!
- threat
- 2.Rd5#
- 1...Rxc4
- 2.Qxe7#
- 1...Bxc4
- 2.Qe3#
- 1...Qa5
- 2.Rxe7#
- 1...Qb7
- 2.Qxa1#
- 1...Qa8
- 2.Rxe7#
- 1...Rb5
- 2.Qxe7#
- 1...e6
- 2.Bxf6#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 6
- Sets
- R(c);CHECK,N_GUARD::S(G),XR(c)
- R(c);N_GUARD::S(G)
- B(a);S_CUTR(c)::S(G)
- B(b);N_GUARD::S(G)
- B(b);S_CUTR(c)::S(G)
- B(b);N_GUARD::S(G),XB(b)
- Tries
- Try
- B(C);
- Threat
- S(G)
- Vars
- B(b);N_GUARD::R1(I),XB(b)
- P(e);::S(G),XP(e)
- Refutation
- R(c);XB(C)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(c);XR(H)::S(G)
- B(b);XR(H)::S(G)
- Refutation
- Q(h);
- Try
- R(H);CHECK
- Refutation
- P(f);XR(H)
- Try
- R(H);CHECK,XP(i)
- Refutation
- Q(h);XR(H)
- Try
- Q(B);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- Refutation
- B(a);XQ(B)
- Try
- Q(B);XR(c)
- Threat
- DUALS(3)
- Vars
- Q(h);::S(G)
- Q(h);P_PINP(D)::S(G)
- B(b);P_PINP(D)::S(G)
- Refutation
- Q(h);CHECK
- Try
- Q(B);CHECK,XB(a)
- Refutation
- Q(h);XQ(B)
- Try
- Q(B);XB(b)
- Threat
- DUALS(4)
- Vars
- R(c);CHECK,N_GUARD::S(G),XR(c)
- R(c);::S(G)
- Refutation
- Q(h);CHECK
- Try
- P(D);CHECK
- Vars
- P(e);XP(D)::S(G)
- Refutation
- R(c);XP(D)
- Try
- Actual
- B(C);
- Threat
- R1(I)
- Vars
- R(c);OGATE,XB(C)::QAR2(B),XP(i)
- B(b);OGATE,XB(C)::QAR2(B)
- Q(h);N_GUARD::R(H),XP(i)
- Q(h);N_GUARD,P_PINP(D)::QAB(B),XB(a)
- Q(h);N_GUARD,P_PINP(D)::R(H),XP(i)
- R(c);OGATE::QAR2(B),XP(i)
- P(i);N_GUARD::B(J),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).