MESON Chess Problem Database
Problem Display
PID: 263428 (R1brk1NK/2pn4/2N4B/1Q1B4/8/4np2/8/5R2 w - - 0 1)
Doroshenko, S
64 Shakhmatnoe obozrenie, 2022
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Ba6
- 2.Rxd8#
- 1...Bb7
- 2.Rxd8#
- 1...Sc5
- 2.Sf6#
- 1...Se5
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sb8
- 2.Sf6#
- 1...Sf8
- 2.Sf6#
- 1...Ba6
- Tries
- 1.Re1?
- 1...Sc5
- 2.Sf6#
- 1...Se5
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sb8
- 2.Sf6#
- 1...Sf8
- 2.Sf6#
- 1...Ba6
- 2.Rxd8#
- 1...Bb7
- 2.Rxd8#
- 1...f2!
- 1...Sc5
- 1.Qd3?
- threat
- 2.Qg6#
- 1...Sc5
- 2.Sf6#
- 1...Se5
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sb8
- 2.Sf6#
- 1...Sf8
- 2.Sf6#
- 1...Sf5!
- threat
- 1.Re1?
- Keys
- 1.Qe2!
- 1...fxe2
- 2.Bf7#
- 1...Sc5
- 2.Sf6#
- 1...Se5
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sb8
- 2.Sf6#
- 1...Sf8
- 2.Sf6#
- 1...Ba6
- 2.Rxd8#
- 1...Bb7
- 2.Rxd8#
- 1...f2
- 2.Qh5#
- 1...fxe2
- 1.Qe2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(e);OGATE,P_SPINR(f)::R1(F),XR(f)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Tries
- Try
- R(A);P_PINS(a)
- Vars
- S(d);N_GUARD::S(G)
- S(d);N_GUARD,N_SPINS(a)::S(G)
- S(d);N_GUARD::S(G),XS(d)
- B(e);OGATE,P_SPINR(f)::R1(F),XR(f)
- Refutation
- P(b);
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- S(a);
- Try
- Actual
- Q(B);P_PINS(a)
- Vars
- P(b);N_SPINS(a),XQ(B)::B(C)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD,N_SPINS(a)::S(G)
- S(d);N_GUARD::S(G),XS(d)
- B(e);OGATE,P_SPINR(f)::R1(F),XR(f)
- P(b);OGATE::QAB(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).