MESON Chess Problem Database
Problem Display
PID: 199937 (n5B1/4K1p1/N1brP1N1/2Pk4/8/BRPP1np1/6q1/3Q4 w - - 0 1)
Bunka, Vladislav
Sachove umeni (Ceskoslovensky sach), 2018
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Qh3
- 2.Qxf3#
- 1...Qg1
- 2.Qxf3#
- 1...Qa2
- 2.Qxf3#
- 1...Qb2
- 2.Qxf3#
- 1...Qc2
- 2.Qxf3#
- 1...Qd2
- 2.Qxf3#
- 1...Qh2
- 2.Qxf3#
- 1...Rxe6+
- 2.Bxe6#
- 1...Rd7+
- 2.exd7#
- 1...Se1
- 2.Qh5#
- 1...Sg1
- 2.Qh5#
- 1...Sd2
- 2.Qh5#
- 1...Sh2
- 2.Qh5#
- 1...Sd4
- 2.c4#
- 1...Se5
- 2.Sf4#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Qh3
- Tries
- 1.Rb5?
- threat
- 2.Sb4#
- 2.Qb3#
- 1...Rxe6+
- 2.Bxe6#
- 1...Rd7+
- 2.exd7#
- 1...Bb7
- 2.Sb4#
- 1...Bd7
- 2.Sb4#
- 1...Be8
- 2.Sb4#
- 1...Qa2
- 2.Sb4#
- 2.Qxf3#
- 1...Qb2
- 2.Qxf3#
- 1...Qc2
- 2.Sb4#
- 2.Qxf3#
- 1...Sd2
- 2.Sb4#
- 2.Qh5#
- 1...Sd4
- 2.Sb4#
- 2.c4#
- 1...Se5
- 2.Sb4#
- 2.Sf4#
- 1...Sb6
- 2.Sb4#
- 2.Sc7#
- 1...Bxb5!
- threat
- 1.Qe2?
- threat
- 2.Sf4#
- 2.Qe4#
- 1...Rxe6+
- 2.Bxe6#
- 2.Qxe6#
- 1...Rd7+
- 2.exd7#
- 1...Ba4
- 2.Qe4#
- 1...Bb5
- 2.Qe4#
- 1...Bb7
- 2.Qe4#
- 1...Bd7
- 2.Qe4#
- 1...Be8
- 2.Qe4#
- 1...Se1
- 2.Sf4#
- 2.Qh5#
- 2.Qe5#
- 1...Sg1
- 2.Sf4#
- 2.Qh5#
- 2.Qe5#
- 1...Sd2
- 2.Sf4#
- 2.Qh5#
- 2.Qe5#
- 1...Sh2
- 2.Sf4#
- 2.Qh5#
- 2.Qe5#
- 1...Sd4
- 2.Sf4#
- 2.Qe5#
- 2.c4#
- 1...Sh4
- 2.Sf4#
- 2.Qe5#
- 1...Se5
- 2.Sf4#
- 2.Qxe5#
- 1...Sg5
- 2.Sf4#
- 2.Qe5#
- 1...Qxe2!
- threat
- 1.Rb5?
- Keys
- 1.Rb6!
- threat
- 2.Qb3#
- 1...Rxe6+
- 2.Bxe6#
- 1...Rd7+
- 2.exd7#
- 1...Sxb6
- 2.Sc7#
- 1...Qa2
- 2.Qxf3#
- 1...Qb2
- 2.Qxf3#
- 1...Qc2
- 2.Qxf3#
- 1...Ba4
- 2.Rxd6#
- 1...Bb5
- 2.Rxd6#
- 1...Sd2
- 2.Qh5#
- 1...Sd4
- 2.c4#
- 1...Se5
- 2.Sf4#
- threat
- 1.Rb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::QAB(A),XS(b)
- R(f);CHECK,OGATE,P_SPINR(f),XP(H)::B(K),XR(f)
- R(f);CHECK,OGATE::B(K)+P(H),XR(f)
- S(b);OGATE::QAR(A)
- S(b);SBLOCK::P(D)
- S(b);SBLOCK::S(I)
- S(h);N_GUARD::S(G)
- S(h);N_GUARD::S(G),XS(h)
- Tries
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(f);CHECK,OGATE,P_SPINR(f),XP(H)::B(K),XR(f)
- R(f);CHECK,OGATE::B(K)+P(H),XR(f)
- B(e);::S(G)
- Q(a);N_GUARD::QAB(A),XS(b)
- Refutation
- B(e);XR(C)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(f);CHECK,OGATE::B(K)+P(H),XR(f)
- B(e);::QAB1(A)
- Refutation
- Q(a);P_PINP(H),XQ(A)
- Try
- Actual
- R(C);
- Threat
- QAB(A)
- Vars
- R(f);CHECK,OGATE,P_SPINR(f),XP(H)::B(K),XR(f)
- R(f);CHECK,OGATE::B(K)+P(H),XR(f)
- S(h);N_GUARD,XR(C)::S(G)
- Q(a);N_GUARD::QAB(A),XS(b)
- B(e);OGATE::R1(C),XR(f)
- S(b);OGATE::QAR(A)
- S(b);SBLOCK::P(D)
- S(b);SBLOCK::S(I)
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).