MESON Chess Problem Database
Problem Display
PID: 203509 (B4R2/3ppN2/1n5P/2nr1kPK/r6p/qQ3N2/1p1p4/5R2 w - - 0 1)
Marin y Llovet, Valentin
1st HM., Good Companions, 1924
#2
9 + 11
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Sxd2#
- 1...Re4
- 2.Sd4#
- 2.Sd8#
- 1...Rd3
- 2.Sd4#
- 2.Sxh4#
- 2.S7e5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Rd4
- 2.Sxd4#
- 2.Sxh4#
- 2.S7e5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Re5
- 2.Sd4#
- 2.Sxh4#
- 2.S7xe5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Rd6
- 2.Sd4#
- 2.Sxh4#
- 2.Sxd6#
- 1...Se4
- 2.Sd4#
- 1...Se6
- 2.Sd6#
- 1...e6
- 2.Sd6#
- 1...Kf4
- Tries
- 1.Bxd5?
- threat
- 2.Sd4#
- 2.Sxh4#
- 2.S7e5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Kf4
- 2.Se1#
- 2.Sg1#
- 2.Sxd2#
- 2.Sh2#
- 2.Sd4#
- 2.Sxh4#
- 2.S3e5#
- 1...d1Q
- 2.Se5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...d1B
- 2.Se5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Rd4
- 2.Sxd4#
- 2.Sxh4#
- 2.S7e5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Ra8
- 2.Se1#
- 2.Sg1#
- 2.Sxd2#
- 2.Sh2#
- 2.Sd4#
- 2.Sxh4#
- 2.S3e5#
- 2.Sd6#
- 2.Sd8#
- 1...Se4
- 2.Sd4#
- 2.Sxh4#
- 2.Sd6#
- 1...Se6
- 2.Sd4#
- 2.Sxh4#
- 2.Sd6#
- 1...h3
- 2.Sd4#
- 2.Sh4#
- 2.S7e5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...d6
- 2.Sd4#
- 2.Sxh4#
- 2.S7e5#
- 2.Sxd6#
- 2.Sd8#
- 2.Sh8#
- 1...e5
- 2.Sd4#
- 2.Sxh4#
- 2.S7xe5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Sxd5!
- threat
- 1.Qxd5+?
- 1...Kf4
- 2.Qe5#
- 1...e5
- 2.Sd4#
- 2.Sxh4#
- 2.S7xe5#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 2.Qxe5#
- 1...Sxd5!
- 1...Kf4
- 1.Qe3?
- threat
- 2.Sd4#
- 2.Sxh4#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Rxa8
- 2.Se1#
- 2.Sg1#
- 2.Sxd2#
- 2.Sh2#
- 2.Sd4#
- 2.Sxh4#
- 2.Sd6#
- 2.Sd8#
- 1...Re4
- 2.Sd4#
- 2.Sd8#
- 1...Re5
- 2.Sd4#
- 2.Sd8#
- 2.Qxe5#
- 1...Se4
- 2.Sd4#
- 1...e5
- 2.Sd4#
- 2.Sd8#
- 1...d1Q
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...d1B
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Qc3
- 2.Sd4#
- 2.Sxh4#
- 2.Sd6#
- 1...Rad4
- 2.Sxd4#
- 2.Sxh4#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Rf4
- 2.Sxh4#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...Rdd4
- 2.Sxd4#
- 2.Sxh4#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 2.Qe5#
- 1...Rd6
- 2.Sd4#
- 2.Sxh4#
- 2.Sxd6#
- 2.Qe5#
- 1...Se6
- 2.Sd4#
- 2.Sxh4#
- 2.Sd6#
- 1...h3
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Sd8#
- 2.Sh8#
- 1...d6
- 2.Sd4#
- 2.Sxh4#
- 2.Sxd6#
- 2.Sd8#
- 2.Sh8#
- 1...Qxe3!
- threat
- 1.Bxd5?
- Keys
- 1.g6!
- threat
- 2.S7g5#
- 1...Ke4+
- 2.S7g5#
- 1...Kf4+
- 2.S3g5#
- 1...Ke6+
- 2.S3g5#
- 1...Kf6+
- 2.S7g5#
- 1...Rxa8
- 2.S3g5#
- 1...Rd6
- 2.Sd4#
- 2.Sxh4#
- 2.Sxd6#
- 1...Se4
- 2.Sd4#
- 1...Se6
- 2.Sd6#
- threat
- 1.g6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- K(h);P-FLIGHT,P_PINP(D)::R(A)+S(C),XP(b)
- S(f);SBLOCK::R(A)+S(C),DCHECK
- S(f);SBLOCK::R(I)+S(G),DCHECK
- P(k);SBLOCK::R(I)+S(G),DCHECK
- Tries
- Try
- B(H);XR(g)
- Threat
- DUALS(6)
- Refutation
- S(i);XB(H)
- Try
- Q(B);CHECK,XR(g)
- Vars
- K(h);P-FLIGHT::QAB1(B)
- Refutation
- S(i);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(5)
- Vars
- S(f);::R(A)+S(C),DCHECK
- Refutation
- Q(c);XQ(B)
- Try
- Actual
- P(D);
- Threat
- R(I)+S(G)
- Vars
- K(h);CHECK,P_SPINR(g),S_FLIGHT::S(G)
- K(h);CHECK,P-FLIGHT::R(A)+S(C)
- K(h);CHECK,P_SPINR(g),S_FLIGHT::S(C)
- K(h);CHECK,P-FLIGHT::R(I)+S(G)
- R(d);N_GUARD,XB(H)::R(A)+S(C)
- S(f);SBLOCK::R(A)+S(C),DCHECK
- S(f);SBLOCK::R(I)+S(G),DCHECK
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).