MESON Chess Problem Database
Problem Display
PID: 104716 (1n4q1/Q3Pn2/5NpP/1b1Nk3/1p4BP/4K3/p7/3R1R2 w - - 0 1)
Mikitovics, Janos
Persa, Istvan
Scacco!, 1981
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kd6
- 2.Qc7#
- 1...Sg5
- 2.Qc7#
- 1...Sd6
- 2.Qd4#
- 1...Sxh6
- 2.Qc7#
- 1...Sd8
- 2.Qxb8#
- 2.Qc7#
- 1...Sh8
- 2.Qc7#
- 1...Kd6
- Tries
- 1.Sc3?
- threat
- 2.Rd5#
- 2.Qd4#
- 2.Qc5#
- 1...Bxf1
- 2.Qd4#
- 1...Sxh6
- 2.Qd4#
- 2.Qc7#
- 1...Bd3
- 2.Qd4#
- 2.Qc5#
- 1...Qc8
- 2.Rd5#
- 2.Qd4#
- 1...Bc4
- 2.Qd4#
- 1...Bc6
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 2.Qc7#
- 1...Sd6
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 2.Qxb8#
- 2.Qc7#
- 1...Sh8
- 2.Qd4#
- 2.Qc7#
- 1...Sa6
- 2.Rd5#
- 2.Qd4#
- 1...Sc6
- 2.Sd7#
- 2.Rd5#
- 2.Qc5#
- 1...Sd7
- 2.Rd5#
- 2.Qd4#
- 1...Qd8!
- threat
- 1.Sxb4?
- threat
- 2.Rd5#
- 2.Qd4#
- 2.Qc5#
- 1...Bxf1
- 2.Qd4#
- 1...Sxh6
- 2.Qd4#
- 2.Qc7#
- 1...Bd3
- 2.Qd4#
- 2.Qc5#
- 1...a1Q
- 2.Rd5#
- 2.Qc5#
- 2.Qxa1#
- 1...a1B
- 2.Rd5#
- 2.Qc5#
- 2.Qxa1#
- 1...Qc8
- 2.Rd5#
- 2.Qd4#
- 1...Bc4
- 2.Qd4#
- 1...Bc6
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 2.Qc7#
- 1...Sd6
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 2.Qxb8#
- 2.Qc7#
- 1...Sh8
- 2.Qd4#
- 2.Qc7#
- 1...Sa6
- 2.Rd5#
- 2.Qd4#
- 1...Sc6
- 2.Sd7#
- 2.Rd5#
- 2.Qc5#
- 1...Sd7
- 2.Rd5#
- 2.Qd4#
- 1...Qd8!
- threat
- 1.Sc7?
- threat
- 2.Rd5#
- 2.Qd4#
- 2.Qc5#
- 1...Bxf1
- 2.Qd4#
- 1...Sxh6
- 2.Qd4#
- 1...Bd3
- 2.Qd4#
- 2.Qc5#
- 1...a1Q
- 2.Rd5#
- 2.Qc5#
- 2.Qxa1#
- 1...a1B
- 2.Rd5#
- 2.Qc5#
- 2.Qxa1#
- 1...Bc4
- 2.Qd4#
- 1...Bc6
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sh8
- 2.Qd4#
- 1...Sa6
- 2.Rd5#
- 2.Qd4#
- 1...Sc6
- 2.Sd7#
- 2.Rd5#
- 2.Qc5#
- 1...Sd7
- 2.Rd5#
- 2.Qd4#
- 1...Qd8!
- threat
- 1.Se4?
- threat
- 2.Qd4#
- 1...a1Q
- 2.Qxa1#
- 1...a1B
- 2.Qxa1#
- 1...Sc6!
- threat
- 1.e8Q+?
- 1...Kd6
- 2.Se4#
- 2.Qc7#
- 2.Qae7#
- 2.Qe6#
- 1...Bxe8
- 2.Qe7#
- 1...Qxe8!
- 1...Kd6
- 1.e8S?
- threat
- 2.Qd4#
- 2.Qe7#
- 1...Bxe8
- 2.Qe7#
- 1...Sxh6
- 2.Qd4#
- 2.Qxb8#
- 2.Qc7#
- 1...a1Q
- 2.Qxa1#
- 2.Qe7#
- 1...a1B
- 2.Qxa1#
- 2.Qe7#
- 1...Qf8
- 2.Qd4#
- 1...Bd7
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 2.Qxb8#
- 2.Qc7#
- 1...Sd6
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 2.Qxb8#
- 2.Qc7#
- 1...Sh8
- 2.Qd4#
- 2.Qxb8#
- 2.Qc7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Qd4#
- 1...Qxe8!
- threat
- 1.e8R+?
- 1...Kd6
- 2.Re6#
- 2.Qc7#
- 1...Bxe8
- 2.Qe7#
- 1...Qxe8!
- 1...Kd6
- 1.Sc3?
- Keys
- 1.Sf4!
- threat
- 2.Qd4#
- 1...Kxf6
- 2.Sd3#
- 1...a1Q
- 2.Qxa1#
- 1...a1B
- 2.Qxa1#
- 1...Qd8
- 2.Sxg6#
- 1...Sc6
- 2.Sd7#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 5
- Sets
- K(d);S_FLIGHT::QAB1(I)
- S(f);N_GUARD::QAB(I)
- S(f);SBLOCK::QAB1(I)
- S(f);N_GUARD,XP(H)::QAB(I)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(c);XR(B)::QAB1(I)
- B(c);::QAB1(I)
- S(f);::QAB1(I)
- Refutation
- Q(h);
- Try
- S(F);XP(b)
- Threat
- DUALS(3)
- Vars
- B(c);XR(B)::QAB1(I)
- B(c);::QAB1(I)
- S(f);::QAB1(I)
- Refutation
- Q(h);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(c);XR(B)::QAB1(I)
- S(f);XP(H)::QAB1(I)
- B(c);::QAB1(I)
- S(f);::QAB1(I)
- Refutation
- Q(h);
- Try
- S(G);
- Threat
- QAB1(I)
- Vars
- P(a);OGATE::QAB(I),XQ(a)
- P(a);OGATE::QAB(I),XB(a)
- Refutation
- S(g);
- Try
- P(J);CHECK
- Vars
- B(c);XQ(J)::QAR2(I)
- Refutation
- Q(h);XQ(J)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- B(c);XS(J)::QAR2(I)
- Q(h);::QAB1(I)
- B(c);::QAB1(I)
- S(f);::QAB1(I)
- S(g);N_GUARD,S_CUTB(c)::S(G)
- S(g);::QAB1(I)
- Refutation
- Q(h);XS(J)
- Try
- P(J);CHECK
- Vars
- B(c);XR(J)::QAR2(I)
- Refutation
- Q(h);XR(J)
- Try
- Actual
- S(F);
- Threat
- QAB1(I)
- Vars
- K(d);S_FLIGHT,XS(G)::R(B)+S(F)
- P(a);OGATE::QAB(I),XQ(a)
- P(a);OGATE::QAB(I),XB(a)
- Q(h);N_GUARD::S(F),XP(e)
- S(g);N_GUARD,S_CUTB(c)::S(G)
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).