MESON Chess Problem Database
Problem Display
PID: 179453 (4Rb1B/pKQ4q/3pN3/2pk1n2/2N5/6pn/3P4/4RB2 w - - 0 1)
Adabashev, Mark Ivanovich
64 Shakhmatnoe obozrenie, 1930
#2
9 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qg6
- 2.Qc6#
- 1...Qg8
- 2.Qc6#
- 1...Qh4
- 2.Qc6#
- 1...Qh5
- 2.Qc6#
- 1...Qh6
- 2.Qc6#
- 1...Qxc7+
- 2.Sxc7#
- 1...Qxh8
- 2.Qc6#
- 1...Be7
- 2.Qc6#
- 1...Bg7
- 2.Qc6#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Se7
- 2.Qxd6#
- 1...Sg7
- 2.Qc6#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...Qg6
- Tries
- 1.Sb2?
- threat
- 2.Bg2#
- 2.Bc4#
- 1...Qxc7+
- 2.Sxc7#
- 1...Qh4
- 2.Qc6#
- 1...Qh5
- 2.Bc4#
- 2.Qc6#
- 1...Sg1
- 2.Sf4#
- 2.Bc4#
- 1...Sf2
- 2.Sf4#
- 2.Bc4#
- 1...Sf4
- 2.Sxf4#
- 2.Bc4#
- 1...Sg5
- 2.Sf4#
- 2.Bc4#
- 1...Sd4
- 2.Bc4#
- 1...Sh4
- 2.Bc4#
- 1...Sh6
- 2.Bc4#
- 1...Se7
- 2.Bc4#
- 1...Sg7
- 2.Bc4#
- 2.Qc6#
- 1...g2
- 2.Bxg2#
- 2.Bc4#
- 1...c4
- 2.Bg2#
- 2.Bxc4#
- 1...Se3!
- threat
- 1.Sa3?
- threat
- 2.Bg2#
- 2.Bc4#
- 1...Qxc7+
- 2.Sxc7#
- 1...Qh4
- 2.Qc6#
- 1...Qh5
- 2.Bc4#
- 2.Qc6#
- 1...Sg1
- 2.Sf4#
- 2.Bc4#
- 1...Sf2
- 2.Sf4#
- 2.Bc4#
- 1...Sf4
- 2.Sxf4#
- 2.Bc4#
- 1...Sg5
- 2.Sf4#
- 2.Bc4#
- 1...Sd4
- 2.Bc4#
- 1...Sh4
- 2.Bc4#
- 1...Sh6
- 2.Bc4#
- 1...Se7
- 2.Bc4#
- 1...Sg7
- 2.Bc4#
- 2.Qc6#
- 1...g2
- 2.Bxg2#
- 2.Bc4#
- 1...c4
- 2.Bg2#
- 2.Bxc4#
- 1...Se3!
- threat
- 1.Sa5?
- threat
- 2.Bg2#
- 2.Bc4#
- 1...Qxc7+
- 2.Sxc7#
- 1...Qh4
- 2.Qc6#
- 1...Qh5
- 2.Bc4#
- 2.Qc6#
- 1...Sg1
- 2.Sf4#
- 2.Bc4#
- 1...Sf2
- 2.Sf4#
- 2.Bc4#
- 1...Sf4
- 2.Sxf4#
- 2.Bc4#
- 1...Sg5
- 2.Sf4#
- 2.Bc4#
- 1...Sd4
- 2.Bc4#
- 1...Sh4
- 2.Bc4#
- 1...Sh6
- 2.Bc4#
- 1...Se7
- 2.Bc4#
- 1...Sg7
- 2.Bc4#
- 2.Qc6#
- 1...g2
- 2.Bxg2#
- 2.Bc4#
- 1...c4
- 2.Bg2#
- 2.Bxc4#
- 1...Se3!
- threat
- 1.Re7?
- threat
- 2.Qc6#
- 1...Sxe7
- 2.Qxd6#
- 1...Sd4
- 2.Qxd6#
- 1...Qxe7!
- threat
- 1.Qxh7?
- threat
- 2.Sc7#
- 2.Qxf5#
- 1...Se3
- 2.Sxe3#
- 2.Sc7#
- 2.Qd3#
- 1...Sd4
- 2.Se3#
- 2.Sc7#
- 2.Qe4#
- 1...Sh4
- 2.Se3#
- 2.Sc7#
- 2.Qd3#
- 2.Qe4#
- 1...Sh6
- 2.Se3#
- 2.Sc7#
- 2.Qd3#
- 2.Qe4#
- 1...Se7
- 2.Sc7#
- 2.Qd3#
- 2.Qe4#
- 1...Sg7
- 2.Qd3#
- 2.Qe4#
- 1...Bg7!
- threat
- 1.Sb2?
- Keys
- 1.d3!
- threat
- 2.Bg2#
- 1...Qxc7+
- 2.Sxc7#
- 1...Qh4
- 2.Qc6#
- 1...Qh5
- 2.Qc6#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Qxd6#
- 1...Sg7
- 2.Qc6#
- 1...g2
- 2.Bxg2#
- threat
- 1.d3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 8
- Sets
- Q(h);N_PINQ(G)::QAB1(G)
- Q(h);CHECK,XQ(G)::S(E),XQ(h)
- Q(h);N_PINQ(G),XB(I)::QAB1(G)
- B(i);N_PINQ(G)::QAB1(G)
- S(b);N_GUARD::S(E)
- S(b);N_GUARD::S(E),XS(b)
- S(e);N_PINQ(G)::QAR1(G),XP(f)
- S(e);N_PINQ(G)::QAB1(G)
- P(g);N_GUARD::S(D)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,XQ(G)::S(E),XQ(h)
- Q(h);N_PINQ(G)::QAB1(G)
- S(e);::B(B)
- S(e);N_PINQ(G)::B(B)
- Refutation
- S(e);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,XQ(G)::S(E),XQ(h)
- Q(h);N_PINQ(G)::QAB1(G)
- S(e);::B(B)
- S(e);N_PINQ(G)::B(B)
- Refutation
- S(e);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,XQ(G)::S(E),XQ(h)
- Q(h);N_PINQ(G)::QAB1(G)
- S(e);::B(B)
- S(e);N_PINQ(G)::B(B)
- Refutation
- S(e);
- Try
- R(H);N_SPINQ(G)
- Threat
- QAB1(G)
- Vars
- S(e);N_GUARD,XR(H)::QAR1(G),XP(f)
- S(e);N_GUARD::QAR1(G),XP(f)
- Refutation
- Q(h);P_PINQ(G),XR(H)
- Try
- Q(G);N_SPINQ(G),XQ(h)
- Threat
- DUALS(2)
- Refutation
- B(i);
- Try
- Actual
- P(C);
- Threat
- B(B)
- Vars
- Q(h);CHECK,XQ(G)::S(E),XQ(h)
- Q(h);N_PINQ(G)::QAB1(G)
- S(b);N_GUARD::S(E)
- S(b);N_GUARD::S(E),XS(b)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD::S(D)
- S(e);N_PINQ(G)::QAR1(G),XP(f)
- S(e);N_PINQ(G)::QAB1(G)
- P(a);::B(B),XP(a)
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).