MESON Chess Problem Database
Problem Display
PID: 237320 (2r2b2/3p1Kn1/R1bB1pN1/3k4/1Q2R2q/1p6/2p5/1B1r4 w - - 0 1)
Dyachuk, Vasyl Vasilovich
Schach-Aktiv, 1994
#2
7 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sf4#
- 1...Qh1
- 2.Sf4#
- 1...Qh3
- 2.Sf4#
- 1...Qxe4
- 2.Qc5#
- 1...Qf4
- 2.Sxf4#
- 1...Qh7
- 2.Sf4#
- 1...Qh8
- 2.Sf4#
- 1...Rxb1
- 2.Qd4#
- 1...Rc1
- 2.Qd4#
- 1...Re1
- 2.Qd4#
- 1...Rf1
- 2.Qd4#
- 1...Rg1
- 2.Qd4#
- 1...Rh1
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Bxd6
- 2.Qc4#
- 1...Be7
- 2.Sxe7#
- 1...c1S
- 2.Qc5#
- 1...c1B
- 2.Qc5#
- 1...b2
- 2.Ba2#
- 1...f5
- 2.Re5#
- 1...Qe1
- Tries
- 1.Bxf8?
- threat
- 2.Se7#
- 2.Qc4#
- 1...Qxe4
- 2.Qc5#
- 1...Rd4
- 2.Qxd4#
- 1...c1Q
- 2.Se7#
- 2.Qd6#
- 1...c1R
- 2.Se7#
- 2.Qd6#
- 1...Qh5
- 2.Qc4#
- 1...Re8
- 2.Qc4#
- 1...Ba4
- 2.Se7#
- 2.Rd6#
- 1...Bb5
- 2.Se7#
- 2.Rd6#
- 1...Bb7
- 2.Se7#
- 2.Rd6#
- 1...Ba8
- 2.Se7#
- 2.Rd6#
- 1...Sf5
- 2.Qc4#
- 1...f5
- 2.Re5#
- 2.Qc4#
- 1...Rxf8+!
- threat
- 1.Rf4?
- threat
- 2.Qc5#
- 1...Qxf4
- 2.Sxf4#
- 1...Bxd6
- 2.Qc4#
- 1...c1Q
- 2.Be4#
- 1...c1R
- 2.Be4#
- 1...Ba4
- 2.Qe4#
- 1...Bb5
- 2.Qe4#
- 1...Bb7
- 2.Qe4#
- 1...Ba8
- 2.Qe4#
- 1...Se6
- 2.Rf5#
- 1...Qf2!
- threat
- 1.Rxh4?
- threat
- 2.Sf4#
- 2.Qc5#
- 1...Bxd6
- 2.Qc4#
- 1...c1Q
- 2.Be4#
- 1...c1B
- 2.Be4#
- 2.Qc5#
- 1...c1R
- 2.Sf4#
- 2.Be4#
- 1...Rf1
- 2.Rd4#
- 2.Qd2#
- 2.Qc5#
- 2.Qd4#
- 1...Rd4
- 2.Rxd4#
- 2.Qc5#
- 2.Qxd4#
- 1...Ba4
- 2.Sf4#
- 2.Qe4#
- 1...Bb5
- 2.Sf4#
- 2.Qe4#
- 1...Bb7
- 2.Sf4#
- 2.Qe4#
- 1...Ba8
- 2.Sf4#
- 2.Qe4#
- 1...Sh5
- 2.Qc5#
- 1...Se6!
- threat
- 1.Bxf8?
- Keys
- 1.Be7!
- threat
- 2.Qc4#
- 1...Qxe4
- 2.Qc5#
- 1...Bxe7
- 2.Sxe7#
- 1...Rd4
- 2.Qxd4#
- 1...c1Q
- 2.Qd6#
- 1...c1R
- 2.Qd6#
- 1...Ba4
- 2.Rd6#
- 1...Bb5
- 2.Rd6#
- 1...Bb7
- 2.Rd6#
- 1...Ba8
- 2.Rd6#
- threat
- 1.Be7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 17
- Sets
- Q(d);N_GUARD::S(F)
- Q(d);SBLOCK,XR(C)::QAR1(B)
- Q(d);N_GUARD::S(F),XQ(d)
- R(a);N_GUARD,XB(A)::QAR1(B)
- R(a);N_GUARD::QAR1(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- B(k);SBLOCK,XB(E)::QAB1(B)
- B(k);N_GUARD::S(F),XB(k)
- P(b);::QAR1(B)
- P(c);OGATEB::B(A)
- P(g);N_GUARD::R1(C)
- Tries
- Try
- B(E);XB(k)
- Threat
- DUALS(2)
- Vars
- Q(d);SBLOCK,XR(C)::QAR1(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- Q(d);P_PINS(F)::QAB1(B)
- R(j);::QAB1(B)
- S(i);::QAB1(B)
- Refutation
- R(j);CHECK,XB(E)
- Try
- R(C);
- Threat
- QAR1(B)
- Vars
- Q(d);XR(C)::S(F),XQ(d)
- B(k);SBLOCK,XB(E)::QAB1(B)
- P(b);OGATE::B(A)
- B(f);::QAB1(B)
- S(i);N_GUARD::R(C)
- Refutation
- Q(d);
- Try
- R(C);XQ(d)
- Threat
- DUALS(2)
- Vars
- B(k);SBLOCK,XB(E)::QAB1(B)
- P(b);OGATE::B(A)
- S(i);::QAR1(B)
- Refutation
- S(i);
- Try
- Actual
- B(E);
- Threat
- QAB1(B)
- Vars
- Q(d);SBLOCK,XR(C)::QAR1(B)
- B(k);XB(E)::S(F),XB(k)
- R(a);N_GUARD::QAR1(B),XR(a)
- P(b);::QAR1(B)
- B(f);OGATE::R1(D)
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).