MESON Chess Problem Database
Problem Display
PID: 55855 (3n1K2/3R1PN1/1qPBp1p1/3P2rb/r2k1P2/8/2Q2P2/b5RB w - - 0 1)
Petite, Efren
2nd Comm., Probleemblad, 2004
#2
12 + 9
| 102 | Probleemblad | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qc5
- 2.Bxc5#
- 1...Qc7
- 2.Bc5#
- 1...Qb1
- 2.Bc5#
- 1...Qb2
- 2.Bc5#
- 1...Qb3
- 2.Bc5#
- 1...Qa6
- 2.Bc5#
- 1...Qb7
- 2.Bc5#
- 1...Qb8
- 2.Bc5#
- 1...Rc4
- 2.Qd2#
- 1...Rxg1
- 2.Be5#
- 1...Rg2
- 2.Be5#
- 1...Rg3
- 2.Be5#
- 1...Rg4
- 2.Be5#
- 2.Rd1#
- 1...Rxd5
- 2.Be5#
- 1...Re5
- 2.Bxe5#
- 1...Bc3
- 2.Qe4#
- 1...Bd1
- 2.Rxd1#
- 1...Sxc6
- 2.Sxe6#
- 1...Sb7
- 2.Sxe6#
- 1...Sxf7
- 2.Sxe6#
- 1...Qc5
- Tries
- 1.Sf5+?
- 1...exf5
- 2.Be5#
- 1...gxf5
- 2.Be5#
- 1...Rxf5!
- 1...exf5
- 1.Rc1?
- threat
- 2.Qe4#
- 2.Qd2#
- 1...exd5
- 2.Qd2#
- 1...Rg2
- 2.Be5#
- 1...Bc3
- 2.Qe4#
- 2.Qxc3#
- 1...Qa5
- 2.Qe4#
- 1...Qb1
- 2.Bc5#
- 1...Qb2
- 2.Bc5#
- 2.Qe4#
- 1...Qb3
- 2.Bc5#
- 2.Qe4#
- 1...Qb4
- 2.Qe4#
- 1...Qb5
- 2.Qe4#
- 1...Qa6
- 2.Bc5#
- 2.Qe4#
- 1...Ra2
- 2.Qe4#
- 2.Qc4#
- 1...Ra3
- 2.Qe4#
- 2.Qc4#
- 1...Rg3
- 2.Be5#
- 2.Qe4#
- 1...Re5
- 2.Bxe5#
- 2.Qd2#
- 1...Be2
- 2.Qe4#
- 1...Bf3!
- threat
- 1.Rg3?
- threat
- 2.Rd3#
- 2.Qd3#
- 2.Qe4#
- 1...Rxg3
- 2.Be5#
- 1...exd5
- 2.Rd3#
- 2.Qd3#
- 1...Bc3
- 2.Qd3#
- 2.Qe4#
- 2.Qxc3#
- 1...Qb1
- 2.Bc5#
- 2.Rd3#
- 2.Qc5#
- 1...Qb3
- 2.Bc5#
- 2.Qe4#
- 2.Qc5#
- 1...Qb5
- 2.Qe4#
- 1...Qa6
- 2.Bc5#
- 2.Qe4#
- 2.Qc5#
- 1...Ra3
- 2.Qe4#
- 1...Re5
- 2.Bxe5#
- 2.Rd3#
- 2.Qd3#
- 1...Be2
- 2.Qe4#
- 1...Bf3!
- threat
- 1.Rxg5?
- threat
- 2.Be5#
- 1...Sxc6
- 2.Sxe6#
- 1...Sxf7
- 2.Sxe6#
- 1...Bc3
- 2.Qe4#
- 1...Qc5
- 2.Bxc5#
- 1...Qc7
- 2.Bc5#
- 1...Qb8
- 2.Bc5#
- 1...Rc4
- 2.Qd2#
- 1...e5
- 2.Bxe5#
- 1...Qb4!
- threat
- 1.Sf5+?
- Keys
- 1.dxe6!
- threat
- 2.Bc5#
- 2.Be5#
- 1...Sxe6+
- 2.Sxe6#
- 1...Bc3
- 2.Qe4#
- 1...Qc5
- 2.Bxc5#
- 1...Qb4
- 2.Bc5#
- 1...Rc4
- 2.Qd2#
- 1...Rc5
- 2.Bxc5#
- 2.Be5#
- 1...Rd5
- 2.Be5#
- 1...Re5
- 2.Bc5#
- 2.Bxe5#
- threat
- 1.dxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 15
- Sets
- Q(f);N_GUARD,P_PINB(H)::B(H),XQ(f)
- Q(f);N_GUARD::B(H)
- R(b);SBLOCK::QAR2(C)
- R(d);N_GUARD,XR(A)::B(H)
- R(d);N_GUARD::B(H)
- R(d);N_GUARD,XP(F)::B(H)
- R(d);N_GUARD::B(H),XR(d)
- B(a);SBLOCK::QAR1(C)
- B(e);N_GUARD::R(A),XB(e)
- S(i);N_GUARD,XP(G)::S(K),XP(g)
- S(i);N_GUARD::S(K),XP(g)
- S(i);N_GUARD,XP(J)::S(K),XP(g)
- Tries
- Try
- S(K);CHECK
- Vars
- P(g);XS(K)::B(H)
- P(h);XS(K)::B(H)
- Refutation
- R(d);P_PINP(J),XS(K)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- P(g);XP(F)::QAR2(C)
- R(d);N_GUARD::B(H)
- Q(f);::QAR1(C)
- Q(f);N_GUARD::B(H)
- Q(f);P_PINB(H)::QAR1(C)
- B(e);::QAR1(C)
- Refutation
- B(e);
- Try
- R(A);
- Threat
- DUALS(3)
- Vars
- R(d);N_GUARD,XR(A)::B(H)
- Q(f);::QAR1(C)
- R(b);::QAR1(C)
- B(e);::QAR1(C)
- Refutation
- B(e);
- Try
- R(A);XR(d)
- Threat
- B(H)
- Vars
- S(i);N_GUARD,XP(G)::S(K),XP(g)
- S(i);N_GUARD,XP(J)::S(K),XP(g)
- B(a);SBLOCK::QAR1(C)
- Q(f);N_GUARD,P_PINB(H)::B(H),XQ(f)
- Q(f);N_GUARD::B(H)
- R(b);SBLOCK::QAR2(C)
- P(g);::B(H),XP(g)
- Refutation
- Q(f);P_PINB(H)
- Try
- Actual
- P(F);XP(g)
- Threat
- DUALS(2)
- Vars
- S(i);CHECK,XP(F)::S(K),XS(i)
- B(a);SBLOCK::QAR1(C)
- Q(f);P_PINB(H)::R(I)+B(H),DCHECK,XQ(f)
- Q(f);P_PINB(H)::R(I)+B(H),DCHECK
- R(b);SBLOCK::QAR2(C)
- R(d);::B(H)
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).