MESON Chess Problem Database
Problem Display
PID: 99087 (8/1pnrN3/R2n1P1R/2p1k1N1/4B3/5pP1/1bPQ4/3K3b w - - 0 1)
Draiska, Imants
Magyar Sakkelet, 1958
#2
10 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe7
- 2.Qxd6#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qf4#
- 1...Sc4
- 2.Sg6#
- 1...Sxe4
- 2.Sf7#
- 1...Sdb5
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sf7
- 2.Sg6#
- 1...Sc8
- 2.Sg6#
- 1...Sde8
- 2.Sg6#
- 1...Scb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sxa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Sce8
- 2.Qd5#
- 1...bxa6
- 2.Sc6#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Rxe7
- Tries
- 1.Bxf3?
- threat
- 2.Qf4#
- 1...Bc1
- 2.Qc3#
- 1...Sc4
- 2.Sf7#
- 1...Se4
- 2.Sf7#
- 1...Sdb5
- 2.Sf7#
- 1...Sf5
- 2.Sf7#
- 2.Sg6#
- 1...Sf7
- 2.Sxf7#
- 1...Sc8
- 2.Sf7#
- 1...Sde8
- 2.Sf7#
- 1...Sd5
- 2.Qxd5#
- 1...Se6
- 2.Qd5#
- 1...Bxf3+!
- threat
- 1.Bf5?
- threat
- 2.Qf4#
- 1...Sxf5
- 2.Sg6#
- 1...Bc1
- 2.Qc3#
- 1...Sc4
- 2.Sf7#
- 1...Se4
- 2.Sf7#
- 1...Sdb5
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...Sc8
- 2.Sf7#
- 1...Sde8
- 2.Sf7#
- 1...Sd5
- 2.Qxd5#
- 1...Se6
- 2.Qd5#
- 1...Rxe7!
- threat
- 1.Bxb7?
- threat
- 2.Qf4#
- 1...Bc1
- 2.Qc3#
- 1...Sc4
- 2.Sf7#
- 1...Se4
- 2.Sf7#
- 1...Sdb5
- 2.Sf7#
- 1...Sf5
- 2.Sf7#
- 2.Sc6#
- 2.Sg6#
- 1...Sf7
- 2.Sxf7#
- 1...Sc8
- 2.Sf7#
- 1...Sde8
- 2.Sf7#
- 1...Sd5
- 2.Qxd5#
- 1...Se6
- 2.Qd5#
- 1...Sxb7!
- threat
- 1.Rxd6?
- threat
- 2.Sg6#
- 2.Qf4#
- 1...Rxe7
- 2.Qf4#
- 1...Bd4
- 2.Qf4#
- 1...Sd5
- 2.Re6#
- 2.Qxd5#
- 1...Bc1
- 2.Sg6#
- 1...Se6
- 2.Rxe6#
- 2.Qd5#
- 1...Rxd6!
- threat
- 1.c3?
- threat
- 2.Qf4#
- 1...Bxc3
- 2.Qxc3#
- 1...Sxe4
- 2.Sf7#
- 1...Sc4
- 2.Sg6#
- 1...Sdb5
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sf7
- 2.Sg6#
- 1...Sc8
- 2.Sg6#
- 1...Sde8
- 2.Sg6#
- 1...Sd5
- 2.Qxd5#
- 1...Se6
- 2.Qd5#
- 1...Bc1!
- threat
- 1.c4?
- threat
- 2.Qxb2#
- 1...Sxc4
- 2.Sg6#
- 1...Sxe4
- 2.Sf7#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qf4#
- 1...Sdb5
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sf7
- 2.Sg6#
- 1...Sc8
- 2.Sg6#
- 1...Sde8
- 2.Sg6#
- 1...Scb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Se6
- 2.Qd5#
- 1...Ba1!
- threat
- 1.Bxf3?
- Keys
- 1.Bh7!
- threat
- 2.Qf4#
- 1...Rxe7
- 2.Qxd6#
- 1...Bc1
- 2.Qc3#
- 1...Sc4
- 2.Sf7#
- 1...Se4
- 2.Sf7#
- 1...Sdb5
- 2.Sf7#
- 1...Sf5
- 2.Sg6#
- 1...Sf7
- 2.Sxf7#
- 1...Sc8
- 2.Sf7#
- 1...Sde8
- 2.Sf7#
- 1...Sd5
- 2.Qxd5#
- 1...Se6
- 2.Qd5#
- threat
- 1.Bh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- R(i);N_GUARD,XS(J)::QAB1(C),XS(f)
- B(b);N_GUARD::QAB(C)
- B(b);N_GUARD::QAB(C),XB(b)
- B(b);SBLOCK::QAB1(C)
- S(f);P_PINQ(C)::S(J)
- S(f);N_GUARD,P_PINQ(C),SBLOCK,XB(E)::S(F)
- S(h);N_GUARD::QAR1(C)
- S(h);N_GUARD::QAR1(C),XS(h)
- S(h);N_GUARD,XR(G)::QAR1(C)
- P(g);N_GUARD,XR(G)::S(J)
- P(g);N_GUARD::S(J)
- Tries
- Try
- B(E);XP(c)
- Threat
- QAB1(C)
- Vars
- B(b);N_GUARD::QAB(C)
- S(f);N_GUARD,P_PINQ(C)::S(F)
- S(f);N_GUARD,P_PINQ(C)::S(F),XS(f)
- S(h);N_GUARD::QAR1(C),XS(h)
- S(h);N_GUARD::QAR1(C)
- Refutation
- B(a);CHECK,XB(E)
- Try
- B(E);
- Threat
- QAB1(C)
- Vars
- S(f);P_PINQ(C),SBLOCK,XB(E)::S(J)
- B(b);N_GUARD::QAB(C)
- S(f);N_GUARD,P_PINQ(C)::S(F)
- S(f);N_GUARD,P_PINQ(C)::S(F),XS(f)
- S(h);N_GUARD::QAR1(C),XS(h)
- S(h);N_GUARD::QAR1(C)
- Refutation
- R(i);XS(J)
- Try
- B(E);XP(g)
- Threat
- QAB1(C)
- Vars
- B(b);N_GUARD::QAB(C)
- S(f);N_GUARD,P_PINQ(C)::S(F)
- S(f);N_GUARD,P_PINQ(C)::S(F),XS(f)
- S(h);N_GUARD::QAR1(C),XS(h)
- S(h);N_GUARD::QAR1(C)
- Refutation
- S(f);P_PINQ(C),XB(E)
- Try
- R(G);XS(f)
- Threat
- DUALS(2)
- Vars
- R(i);XS(J)::QAB1(C)
- B(b);::QAB1(C)
- B(b);::S(J)
- Refutation
- R(i);P_PINQ(C),XR(G)
- Try
- P(B);
- Threat
- QAB1(C)
- Vars
- B(b);OGATE,XP(B)::QAB(C),XB(b)
- S(f);N_GUARD,P_PINQ(C),SBLOCK,XB(E)::S(F)
- S(f);P_PINQ(C)::S(J)
- S(h);N_GUARD::QAR1(C),XS(h)
- S(h);N_GUARD::QAR1(C)
- Refutation
- B(b);
- Try
- P(B);
- Threat
- QAB(C),XB(b)
- Vars
- S(f);P_PINQ(C),XP(B)::S(J)
- S(f);N_GUARD,P_PINQ(C),SBLOCK,XB(E)::S(F)
- B(b);N_GUARD::QAB(C)
- B(b);N_GUARD::QAB(C),XB(b)
- B(b);SBLOCK::QAB1(C)
- S(f);P_PINQ(C)::S(J)
- S(h);N_GUARD::QAR1(C)
- S(h);N_GUARD::QAR1(C),XS(h)
- Refutation
- B(b);
- Try
- Actual
- B(E);
- Threat
- QAB1(C)
- Vars
- R(i);N_GUARD,XS(J)::QAB1(C),XS(f)
- B(b);N_GUARD::QAB(C)
- S(f);N_GUARD,P_PINQ(C)::S(F)
- S(f);P_PINQ(C),SBLOCK::S(J)
- S(f);N_GUARD,P_PINQ(C)::S(F),XS(f)
- S(h);N_GUARD::QAR1(C),XS(h)
- S(h);N_GUARD::QAR1(C)
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).