MESON Chess Problem Database
Problem Display
PID: 238964 (K2nB2B/pp6/1q6/2P5/3PN3/3k1b1Q/N1R1RP1n/6r1 w - - 0 1)
Petite, Efren
Problemas, 1998
#2
11 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxc5
- 2.Sxc5#
- 1...Qc7
- 2.Sb4#
- 2.Bb5#
- 1...Qb4
- 2.Sxb4#
- 1...Qb5
- 2.Bxb5#
- 1...Qa6
- 2.Sb4#
- 1...Qc6
- 2.Sb4#
- 1...Qd6
- 2.Sb4#
- 2.Bb5#
- 1...Qe6
- 2.Sb4#
- 1...Qg6
- 2.Sb4#
- 2.Bb5#
- 1...Qh6
- 2.Sb4#
- 2.Bb5#
- 1...Rc1
- 2.Sxc1#
- 1...Rg2
- 2.Sc1#
- 1...Rg3
- 2.Sc1#
- 1...Rg4
- 2.Sc1#
- 1...Rg5
- 2.Sc1#
- 1...Rg6
- 2.Sc1#
- 1...Rg8
- 2.Sc1#
- 1...Sf1
- 2.Sc1#
- 1...Qxc5
- Tries
- 1.Sg3?
- threat
- 2.Rc3#
- 2.Red2#
- 1...Qxc5
- 2.Red2#
- 1...Rxg3
- 2.Sc1#
- 1...Bxe2
- 2.Qf5#
- 1...Qf6
- 2.Red2#
- 1...Qb2
- 2.Red2#
- 1...Qb3
- 2.Red2#
- 1...Qb4
- 2.Sxb4#
- 1...Qh6
- 2.Sb4#
- 2.Bb5#
- 2.Rc3#
- 1...Rc1
- 2.Sxc1#
- 2.Red2#
- 1...Rd1
- 2.Rc3#
- 1...Sf1
- 2.Sc1#
- 2.Rc3#
- 1...Qa5!
- threat
- 1.Sg5?
- threat
- 2.Red2#
- 1...Rxg5
- 2.Sc1#
- 1...Qa5
- 2.Bg6#
- 1...Qb4
- 2.Sxb4#
- 2.Bg6#
- 1...Sf1
- 2.Sc1#
- 1...Rd1!
- threat
- 1.Sd6?
- threat
- 2.Rcd2#
- 2.Red2#
- 1...Qxd6
- 2.Sb4#
- 2.Bb5#
- 1...Qb2
- 2.Red2#
- 1...Qb4
- 2.Sxb4#
- 1...Rd1
- 2.Bg6#
- 1...Sf1
- 2.Sc1#
- 1...Qa5!
- threat
- 1.Qe6?
- threat
- 2.Rcd2#
- 2.Red2#
- 2.Qc4#
- 1...Qxc5
- 2.Sxc5#
- 2.Rcd2#
- 2.Red2#
- 1...Qxe6
- 2.Sb4#
- 1...Bxe2
- 2.Rd2#
- 2.Rc3#
- 1...Qa5
- 2.Qc4#
- 1...Qb2
- 2.Red2#
- 2.Qc4#
- 1...Qb3
- 2.Rcd2#
- 2.Red2#
- 2.Qxb3#
- 1...Qb4
- 2.Sxb4#
- 1...Qb5
- 2.Bxb5#
- 2.Rcd2#
- 2.Red2#
- 1...Qa6
- 2.Sb4#
- 2.Rcd2#
- 2.Red2#
- 2.Qb3#
- 1...Rd1
- 2.Qc4#
- 1...Sf1
- 2.Sc1#
- 2.Qc4#
- 1...Sxe6!
- threat
- 1.Qh6?
- threat
- 2.Qd2#
- 2.Qe3#
- 1...Qxh6
- 2.Sb4#
- 2.Bb5#
- 1...Qa5
- 2.Qe3#
- 1...Qb4
- 2.Sxb4#
- 2.Qe3#
- 1...Rd1
- 2.Qe3#
- 1...Rg5
- 2.Sc1#
- 1...Sf1
- 2.Sc1#
- 1...Sg4
- 2.Qd2#
- 1...Bxe2!
- threat
- 1.cxb6?
- threat
- 2.Sb4#
- 2.Sc5#
- 2.Bb5#
- 1...axb6
- 2.Sb4#
- 2.Bb5#
- 1...Rb1
- 2.Sc5#
- 1...Rg5
- 2.Sc1#
- 2.Sb4#
- 1...Sc6
- 2.Sc5#
- 1...Se6
- 2.Sb4#
- 2.Bb5#
- 1...a5
- 2.Sc5#
- 2.Bb5#
- 1...a6
- 2.Sb4#
- 2.Sc5#
- 1...Rg7!
- threat
- 1.Sg3?
- Keys
- 1.Bg6!
- threat
- 2.Red2#
- 1...Qxg6
- 2.Sb4#
- 1...Rxg6
- 2.Sc1#
- 1...Qa5
- 2.Sg5#
- 1...Qb4
- 2.Sxb4#
- 2.Sg5#
- 1...Rd1
- 2.Sd6#
- 1...Sf1
- 2.Sc1#
- threat
- 1.Bg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 12
- Sets
- Q(e);XP(H)::S(G),XQ(e)
- Q(e);N_GUARD::S(A),XQ(e)
- Q(e);N_GUARD::B(J),XQ(e)
- Q(e);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::S(A)
- R(a);N_GUARD,N_SPINB(d)::S(A)
- S(b);S_CUTR(a)::S(A)
- Tries
- Try
- S(G);N_PINB(d)
- Threat
- DUALS(2)
- Vars
- Q(e);XP(H)::R1(C)
- R(a);N_GUARD,XS(G)::S(A)
- B(d);N_GUARD,XR(C)::QAB(E)
- Q(e);::R1(C)
- Q(e);N_GUARD::S(A),XQ(e)
- R(a);::R1(B)
- Refutation
- Q(e);
- Try
- S(G);
- Threat
- R1(C)
- Vars
- R(a);N_GUARD,XS(G)::S(A)
- Q(e);N_GUARD::B(J)
- S(b);S_CUTR(a)::S(A)
- Refutation
- R(a);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(e);::R1(C)
- Q(e);N_GUARD::S(A),XQ(e)
- R(a);N_GUARD::B(J)
- S(b);S_CUTR(a)::S(A)
- Refutation
- Q(e);
- Try
- Q(E);N_PINB(d)
- Threat
- DUALS(3)
- Vars
- Q(e);N_GUARD,XQ(E)::S(A)
- Q(e);::QAB1(E)
- Q(e);N_GUARD::S(A),XQ(e)
- R(a);::QAB1(E)
- Refutation
- S(h);XQ(E)
- Try
- Q(E);N_PINB(d)
- Threat
- DUALS(2)
- Vars
- Q(e);::QAR1(E)
- R(a);::QAR1(E)
- R(a);N_GUARD::S(A)
- S(b);S_CUTR(a)::S(A)
- S(b);::QAR1(E)
- Refutation
- B(d);XR(C)
- Try
- P(H);XQ(e)
- Threat
- DUALS(3)
- Vars
- R(a);::S(G)
- S(h);::S(G)
- Refutation
- R(a);
- Try
- Actual
- B(J);
- Threat
- R1(C)
- Vars
- Q(e);N_GUARD,XB(J)::S(A)
- R(a);N_GUARD,XB(J)::S(A)
- Q(e);N_GUARD::B(J)+S(G)
- R(a);N_GUARD::B(J)+S(G)
- S(b);S_CUTR(a)::S(A)
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).