MESON Chess Problem Database
Problem Display
PID: 124590 (8/2p1P2p/r1b4Q/r3Pk2/2P1NP2/1Nn1p1BP/2q1p1P1/b3n2K w - - 0 1)
Shedey, Sergey Oleksandrovich
Shakhmaty, 1975
#2
11 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Qxh7#
- 1...Qxe4
- 2.Qf6#
- 1...Bxe4
- 2.Sd4#
- 1...Kxe4
- Tries
- 1.Sbc5?
- threat
- 2.Qg5#
- 2.Qh5#
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Bxe4
- 2.Qg5#
- 2.Qh5#
- 1...Sxe4
- 2.Qe6#
- 2.Qxh7#
- 1...Ba4
- 2.Qg5#
- 2.Qh5#
- 1...Bb5
- 2.Qg5#
- 2.Qh5#
- 1...Bd5
- 2.Qg5#
- 2.Qh5#
- 1...Bb7
- 2.Qg5#
- 2.Qh5#
- 1...Bd7
- 2.Qg5#
- 2.Qh5#
- 1...Ba8
- 2.Qg5#
- 2.Qh5#
- 1...Be8
- 2.Qg5#
- 1...Sf3
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Sd5
- 2.Qg5#
- 2.Qh5#
- 2.Qe6#
- 2.Qxh7#
- 1...Rxc5!
- threat
- 1.Sg5?
- threat
- 2.Sd4#
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Qxb3
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Rxe5
- 2.Sd4#
- 1...Qd1
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Qd3
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Qe4
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Qd2
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Rd5
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Bf3
- 2.Sd4#
- 1...Ba4
- 2.Sd4#
- 1...Be4
- 2.Sd4#
- 1...Bb5
- 2.Sd4#
- 1...Bd5
- 2.Sd4#
- 1...Bb7
- 2.Sd4#
- 1...Bd7
- 2.Sd4#
- 1...Ba8
- 2.Sd4#
- 1...Be8
- 2.Sd4#
- 1...Sf3
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Sb1
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Sd1
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Sa2
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Sa4
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Se4
- 2.Qe6#
- 2.Qxh7#
- 1...Sb5
- 2.Qe6#
- 2.Qf6#
- 2.Qxh7#
- 1...Sd5
- 2.Qe6#
- 2.Qxh7#
- 1...Bxg2+!
- threat
- 1.Bxe1?
- threat
- 2.Sg3#
- 1...Qxe4
- 2.Qf6#
- 1...Bxe4
- 2.Sd4#
- 1...Sxe4
- 2.g4#
- 1...Kxe4!
- threat
- 1.Bf2?
- threat
- 2.Sg3#
- 1...Qxe4
- 2.Qf6#
- 1...Bxe4
- 2.Sd4#
- 1...Sxe4
- 2.g4#
- 1...Kxe4!
- threat
- 1.Bh4?
- threat
- 2.Sg3#
- 1...Qxe4
- 2.Qf6#
- 1...Bxe4
- 2.Sd4#
- 1...Sxe4
- 2.g4#
- 1...Kxe4!
- threat
- 1.Qh5+?
- 1...Kxe4
- 2.Qxh7#
- 1...Ke6!
- 1...Kxe4
- 1.Sbc5?
- Keys
- 1.Bh2!
- threat
- 2.Sg3#
- 1...Kxe4
- 2.Qxh7#
- 1...Qxe4
- 2.Qf6#
- 1...Bxe4
- 2.Sd4#
- 1...Sxe4
- 2.g4#
- threat
- 1.Bh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(h);S_FLIGHT,XS(G)::QAB(J),XP(l)
- Q(c);P_PINP(B),SBLOCK,XS(G)::QAR1(J)
- B(j);P_PINP(B),SBLOCK,XS(G)::S(C)
- Tries
- Try
- S(C);
- Threat
- DUALS(5)
- Vars
- B(j);::QAR1(J)
- Refutation
- R(g);XS(C)
- Try
- S(G);P_SPINP(B)
- Threat
- DUALS(4)
- Vars
- R(g);XP(I)::S(C)
- B(j);::S(C)
- B(j);N_PINP(B)::S(C)
- Refutation
- B(j);CHECK,XP(B)
- Try
- B(D);XS(b)
- Threat
- S(G)
- Vars
- Q(c);P_PINP(B),SBLOCK,XS(G)::QAR1(J)
- B(j);P_PINP(B),SBLOCK,XS(G)::S(C)
- S(e);SBLOCK,XS(G)::P(B)
- Refutation
- K(h);S_FLIGHT,XS(G)
- Try
- B(D);
- Threat
- S(G)
- Vars
- Q(c);P_PINP(B),SBLOCK,XS(G)::QAR1(J)
- B(j);P_PINP(B),SBLOCK,XS(G)::S(C)
- S(e);SBLOCK,XS(G)::P(B)
- Refutation
- K(h);S_FLIGHT,XS(G)
- Try
- B(D);
- Threat
- S(G)
- Vars
- Q(c);P_PINP(B),SBLOCK,XS(G)::QAR1(J)
- B(j);P_PINP(B),SBLOCK,XS(G)::S(C)
- S(e);SBLOCK,XS(G)::P(B)
- Refutation
- K(h);S_FLIGHT,XS(G)
- Try
- Q(J);CHECK
- Vars
- K(h);S_FLIGHT,XS(G)::QAB(J),XP(l)
- Refutation
- K(h);S_FLIGHT
- Try
- Actual
- B(D);
- Threat
- S(G)
- Vars
- K(h);S_FLIGHT,XS(G)::QAB(J),XP(l)
- Q(c);P_PINP(B),SBLOCK,XS(G)::QAR1(J)
- B(j);P_PINP(B),SBLOCK,XS(G)::S(C)
- S(e);SBLOCK,XS(G)::P(B)
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).