MESON Chess Problem Database
Problem Display
PID: 187432 (Q2n1Nr1/1p1P1BPb/1p1R1p2/1p2p2n/N1p1k1P1/5Rp1/2K3P1/b1B5 w - - 0 1)
Comay, Ofer
1st Prize, Israel Ring Ty., 2013
#2
12 + 13
| 145 | StrateGems | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Bc3
- 2.Sxc3#
- 1...Bd4
- 2.Bd5#
- 1...Sf4
- 2.Re3#
- 1...Se6
- 2.Qxb7#
- 1...Sxf7
- 2.Qxb7#
- 1...Bc3
- Tries
- 1.Se6?
- threat
- 2.Re3#
- 1...Sxe6
- 2.Qxb7#
- 1...Bd4!
- threat
- 1.Sg6?
- threat
- 2.Re3#
- 1...Bd4
- 2.Bd5#
- 1...Bxg6!
- threat
- 1.Bb2?
- threat
- 2.Sc3#
- 2.Bd5#
- 1...Sxf7
- 2.Sc3#
- 2.Qxb7#
- 1...bxa4
- 2.Bd5#
- 1...Sf4
- 2.Sc3#
- 1...Se6
- 2.Sc3#
- 2.Qxb7#
- 1...c3
- 2.Sxc3#
- 1...b4
- 2.Bd5#
- 1...Bxb2!
- threat
- 1.Be3?
- threat
- 2.Bd5#
- 1...Sxf7
- 2.Qxb7#
- 1...Se6
- 2.Qxb7#
- 1...Sf4!
- threat
- 1.Bh6?
- threat
- 2.Re3#
- 1...Bd4
- 2.Bd5#
- 1...Sf4!
- threat
- 1.Bxc4?
- threat
- 2.Bd3#
- 1...Sf4
- 2.Re3#
- 1...bxc4!
- threat
- 1.Rf1?
- threat
- 2.Re1#
- 1...Bc3
- 2.Sxc3#
- 1...Bd4
- 2.Bd5#
- 1...Sf4!
- threat
- 1.Rfd3?
- threat
- 2.Bd5#
- 1...Sxf7
- 2.Qxb7#
- 1...Sf4
- 2.Re3#
- 1...Se6
- 2.Qxb7#
- 1...cxd3+!
- threat
- 1.Rd1?
- threat
- 2.Bd5#
- 1...Sxf7
- 2.Qxb7#
- 1...Sf4
- 2.Re3#
- 1...Se6
- 2.Qxb7#
- 1...Bd4!
- threat
- 1.Qxb7+?
- 1...Sc6
- 2.Qxc6#
- 1...Sxb7!
- 1...Sc6
- 1.Se6?
- Keys
- 1.Qa5!
- threat
- 2.Qe1#
- 1...bxa5
- 2.Sc5#
- 1...Sf4
- 2.Re3#
- 1...Bc3
- 2.Sxc3#
- 1...Bd4
- 2.Bd5#
- 1...c3
- 2.Qb4#
- 1...b4
- 2.Qd5#
- threat
- 1.Qa5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- B(a);N_GUARD::S(E),XB(a)
- B(a);SBLOCK::B(I)
- S(g);SBLOCK::R1(D)
- S(l);N_GUARD::QAB(K),XP(j)
- S(l);N_GUARD,XB(I)::QAB(K),XP(j)
- Tries
- Try
- S(L);
- Threat
- R1(D)
- Vars
- S(l);N_GUARD,XS(L)::QAB(K),XP(j)
- Refutation
- B(a);
- Try
- S(L);
- Threat
- R1(D)
- Vars
- B(a);SBLOCK::B(I)
- Refutation
- B(k);XS(L)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- P(e);XS(E)::B(I)
- S(g);::S(E)
- P(c);::S(E),XP(c)
- P(e);::B(I)
- Refutation
- B(a);XB(A)
- Try
- B(A);
- Threat
- B(I)
- Vars
- S(l);N_GUARD,XB(I)::QAB(K),XP(j)
- S(l);N_GUARD::QAB(K),XP(j)
- Refutation
- S(g);
- Try
- B(A);
- Threat
- R1(D)
- Vars
- B(a);SBLOCK::B(I)
- Refutation
- S(g);
- Try
- B(I);XP(c)
- Threat
- B(I)
- Vars
- S(g);SBLOCK::R1(D)
- Refutation
- P(e);XB(I)
- Try
- R(D);
- Threat
- R(D)
- Vars
- B(a);N_GUARD::S(E),XB(a)
- B(a);SBLOCK::B(I)
- Refutation
- S(g);
- Try
- R(D);
- Threat
- B(I)
- Vars
- S(l);N_GUARD,XB(I)::QAB(K),XP(j)
- S(g);SBLOCK::R1(D)
- S(l);N_GUARD::QAB(K),XP(j)
- Refutation
- P(c);CHECK,XR(D)
- Try
- R(G);
- Threat
- B(I)
- Vars
- S(l);N_GUARD,XB(I)::QAB(K),XP(j)
- S(g);SBLOCK::R1(D)
- S(l);N_GUARD::QAB(K),XP(j)
- Refutation
- B(a);
- Try
- Q(K);CHECK,XP(j)
- Vars
- S(l);N_GUARD,P_SPINS(l)::QAB(K),XS(l)
- Refutation
- S(l);XQ(K)
- Try
- Actual
- Q(K);N_PINP(j)
- Threat
- QAR(K)
- Vars
- P(h);N_GUARD,XQ(K)::S(E)
- S(g);SBLOCK::R1(D)
- B(a);N_GUARD::S(E),XB(a)
- B(a);SBLOCK::B(I)
- P(c);OGATEB::QAR(K)
- P(e);OGATE::QAB1(K)
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).