MESON Chess Problem Database
Problem Display
PID: 272818 (8/3p1r2/1K1N4/p1n1n3/p1bk1P2/2N4R/3P4/1Q3B2 w - - 0 1)
Vakhlakov, Yuri Nikolaevich
Shakhmatnaya kompozitsiya, 1998
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Rf5
- 2.Sxf5#
- 1...Re7
- 2.Sf5#
- 1...Rg7
- 2.Sf5#
- 1...Rh7
- 2.Sf5#
- 1...Ba2
- 2.Sdb5#
- 1...Bb3
- 2.Sdb5#
- 1...Bb5
- 2.Sdxb5#
- 1...Bd5
- 2.Se2#
- 2.Scb5#
- 2.Sdb5#
- 1...Be6
- 2.Sdb5#
- 1...Sb3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Se6
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Rf5
- Tries
- 1.Bxc4?
- threat
- 2.Se2#
- 2.Scb5#
- 2.Qg1#
- 1...Rxf4
- 2.Se2#
- 2.Scb5#
- 1...Rg7
- 2.Se2#
- 2.Scb5#
- 1...Scd3
- 2.Se2#
- 2.Scb5#
- 1...Se4
- 2.Se2#
- 2.Scb5#
- 2.Qxe4#
- 1...Sed3
- 2.Se2#
- 2.Scb5#
- 1...Sf3
- 2.Se2#
- 2.Scb5#
- 1...Sg4
- 2.Se2#
- 2.Scb5#
- 1...Sxc4+!
- threat
- 1.Qf5?
- threat
- 2.Qxe5#
- 1...Rxf5
- 2.Sxf5#
- 1...Scd3
- 2.Qe4#
- 1...Sed3
- 2.Se2#
- 1...Sf3
- 2.Qxc5#
- 1...Sg4
- 2.Qxc5#
- 1...Sc6
- 2.Qxc5#
- 1...Sg6
- 2.Qxc5#
- 1...Re7!
- threat
- 1.Qe1?
- threat
- 2.Qf2#
- 2.Qe3#
- 2.Qxe5#
- 1...Rxf4
- 2.Qe3#
- 1...Rf5
- 2.Sxf5#
- 2.Qf2#
- 2.Qe3#
- 1...Re7
- 2.Sf5#
- 2.Qf2#
- 2.Qe3#
- 1...Be2
- 2.Qf2#
- 1...Scd3
- 2.Qe3#
- 2.Qe4#
- 1...Se4
- 2.Qe3#
- 2.Qxe4#
- 1...Sed3
- 2.Qe3#
- 1...Sf3
- 2.Qf2#
- 2.Qe3#
- 1...Sc6
- 2.Qf2#
- 2.Qe3#
- 1...Sg6
- 2.Qf2#
- 2.Qe3#
- 1...Sg4!
- threat
- 1.Qb4?
- threat
- 2.Sdb5#
- 2.Qxc5#
- 1...Rf6
- 2.Qxc5#
- 1...Sb3
- 2.Sdb5#
- 1...Scd3
- 2.Sdb5#
- 1...Se4
- 2.Sdb5#
- 1...Sa6
- 2.Sdb5#
- 1...Se6
- 2.Sdb5#
- 1...Sb7
- 2.Sdb5#
- 1...Sed3
- 2.Sdb5#
- 2.Qxc4#
- 1...axb4!
- threat
- 1.Bxc4?
- Keys
- 1.Qb5!
- threat
- 2.Qxc5#
- 1...Bxb5
- 2.Sdxb5#
- 1...Sb3
- 2.Qxe5#
- 1...Scd3
- 2.Se2#
- 1...Se4
- 2.Qxe5#
- 1...Sa6
- 2.Qxe5#
- 1...Se6
- 2.Qxe5#
- 1...Sb7
- 2.Qxe5#
- 1...Sed3
- 2.Qxc4#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(h);N_GUARD::S(H),XR(h)
- R(h);N_GUARD::S(H)
- B(b);N_GUARD::S(H)
- B(b);N_GUARD::S(H),XB(b)
- S(e);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A),XS(e)
- Tries
- Try
- B(B);XB(b)
- Threat
- DUALS(3)
- Refutation
- S(f);CHECK,XB(B)
- Try
- Q(A);
- Threat
- QAB1(A),XS(f)
- Vars
- R(h);XQ(A)::S(H),XR(h)
- S(e);N_GUARD::QAR1(A)
- S(f);S_CUTB(b)::S(D)
- S(f);OGATE::QAB1(A),XS(e)
- Refutation
- R(h);
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(h);XP(F)::QAB1(A)
- B(b);::QAB(A)
- S(f);::QAB1(A)
- Refutation
- S(f);
- Try
- Q(A);P_PINB(b)
- Threat
- DUALS(2)
- Vars
- R(h);P_PINS(H)::QAB1(A),XS(e)
- S(e);::S(H)
- Refutation
- P(d);N_SPINB(b),XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB1(A),XS(e)
- Vars
- B(b);XQ(A)::S(H),XB(b)
- S(e);OGATE::QAB1(A),XS(f)
- S(e);S_CUTB(b)::S(D)
- S(f);N_GUARD::QAR1(A),XB(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).