MESON Chess Problem Database
Problem Display
PID: 212837 (B2n4/1b3N2/1K6/pQ4B1/3kP1Rn/2pN4/5p2/4rr2 w - - 0 1)
Burda, Josef
Sachova skladba, 1989
#2
8 + 9
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Bf6#
- 1...Bxe4
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Ba6
- 2.Qd5#
- 1...Bc8
- 2.Qd5#
- 1...Sc6
- 2.Qd5#
- 1...Re3
- Tries
- 1.Sc1?
- threat
- 2.Sb3#
- 2.Qd3#
- 2.Qa4#
- 2.Qc5#
- 1...Rxe4
- 2.Se2#
- 2.Sb3#
- 2.Qd3#
- 2.Qc5#
- 1...Sxf7
- 2.Sb3#
- 2.Qc5#
- 1...c2
- 2.Qd3#
- 2.Qc5#
- 1...Rd1
- 2.Se2#
- 2.Sb3#
- 2.Qa4#
- 2.Qc5#
- 1...Re3
- 2.Sb3#
- 2.Bf6#
- 2.Qa4#
- 2.Qc5#
- 1...Bd5
- 2.Qd3#
- 2.Qc5#
- 2.Qxd5#
- 1...Ba6
- 2.Sb3#
- 2.Qc5#
- 2.Qd5#
- 1...Bc6
- 2.Sb3#
- 2.Qd3#
- 2.Qc5#
- 1...Sc6
- 2.Sb3#
- 2.Qd3#
- 2.Qc5#
- 2.Qd5#
- 1...Se6
- 2.Sb3#
- 2.Qd3#
- 2.Qa4#
- 1...a4
- 2.Qd3#
- 2.Qxa4#
- 2.Qb4#
- 2.Qc5#
- 1...Rxc1!
- threat
- 1.Sb2?
- threat
- 2.Qd3#
- 2.Qa4#
- 2.Qc4#
- 2.Qc5#
- 2.Qe5#
- 1...Rxe4
- 2.Qd3#
- 2.Qc4#
- 2.Qc5#
- 2.Qe5#
- 1...Sxf7
- 2.Qc5#
- 1...c2
- 2.Qd3#
- 2.Qc4#
- 2.Qc5#
- 2.Qe5#
- 1...Ra1
- 2.Qd3#
- 2.Qc4#
- 2.Qc5#
- 2.Qe5#
- 1...Rd1
- 2.Qa4#
- 2.Qc4#
- 2.Qc5#
- 2.Qe5#
- 1...Re3
- 2.Bf6#
- 2.Qa4#
- 2.Qc4#
- 2.Qc5#
- 2.Qe5#
- 1...Bd5
- 2.Qd3#
- 2.Qc5#
- 2.Qxd5#
- 1...Ba6
- 2.Qd7#
- 2.Qc5#
- 2.Qd5#
- 2.Qe5#
- 1...Bc6
- 2.Qd3#
- 2.Qc4#
- 2.Qc5#
- 2.Qe5#
- 1...Sf3
- 2.Qd3#
- 2.Qa4#
- 2.Qc4#
- 2.Qc5#
- 1...Sg6
- 2.Qd3#
- 2.Qa4#
- 2.Qc4#
- 2.Qc5#
- 1...Sc6
- 2.Qd3#
- 2.Qc4#
- 2.Qc5#
- 2.Qd5#
- 1...Se6
- 2.Qd3#
- 2.Qa4#
- 2.Qc4#
- 2.Qe5#
- 1...a4
- 2.Qd3#
- 2.Qxa4#
- 2.Qc4#
- 2.Qb4#
- 2.Qc5#
- 2.Qe5#
- 1...cxb2!
- threat
- 1.Sb4?
- threat
- 2.Sc2#
- 2.Qd3#
- 2.Qc5#
- 1...Sxf7
- 2.Sc2#
- 2.Qc5#
- 1...c2
- 2.Qd3#
- 2.Qc5#
- 1...Rc1
- 2.Qd3#
- 2.Qc5#
- 1...Rd1
- 2.Sc2#
- 2.Qc5#
- 1...Re2
- 2.Qd3#
- 2.Qc5#
- 1...Re3
- 2.Sc2#
- 2.Bf6#
- 2.Qc5#
- 1...Ba6
- 2.Sc2#
- 2.Qc5#
- 2.Qd5#
- 1...Se6
- 2.Sc2#
- 2.Qd3#
- 1...axb4!
- threat
- 1.Sc5?
- threat
- 2.Sb3#
- 2.Qd3#
- 2.Qa4#
- 1...Rxe4
- 2.Sb3#
- 2.Qd3#
- 1...Sxf7
- 2.Sb3#
- 2.Se6#
- 1...c2
- 2.Qd3#
- 1...Ra1
- 2.Sb3#
- 2.Qd3#
- 1...Rd1
- 2.Sb3#
- 2.Qa4#
- 1...Re3
- 2.Sb3#
- 2.Bf6#
- 2.Qa4#
- 1...Bd5
- 2.Qd3#
- 1...Ba6
- 2.Sb3#
- 1...Bc6
- 2.Sb3#
- 2.Qd3#
- 1...Sc6
- 2.Sb3#
- 2.Se6#
- 2.Qd3#
- 1...a4
- 2.Qd3#
- 2.Qxa4#
- 2.Qb4#
- 1...Rb1!
- threat
- 1.Sde5?
- threat
- 2.Qd3#
- 2.Qa4#
- 2.Qc4#
- 2.Qc5#
- 1...Rxe4
- 2.Qd3#
- 2.Qc4#
- 2.Qc5#
- 1...Sxf7
- 2.Qc5#
- 1...c2
- 2.Qd3#
- 2.Qc4#
- 2.Qb2#
- 2.Qc5#
- 1...Ra1
- 2.Qd3#
- 2.Qc4#
- 2.Qc5#
- 1...Rd1
- 2.Qa4#
- 2.Qc4#
- 2.Qc5#
- 1...Re3
- 2.Qa4#
- 2.Qc4#
- 2.Qc5#
- 1...Bd5
- 2.Qd3#
- 2.Qc5#
- 2.Qxd5#
- 1...Ba6
- 2.Qd7#
- 2.Qc5#
- 2.Qd5#
- 1...Bc6
- 2.Qd3#
- 2.Qc4#
- 2.Qc5#
- 1...Sc6
- 2.Qd3#
- 2.Qc4#
- 2.Qc5#
- 2.Qd5#
- 1...Se6
- 2.Qd3#
- 2.Qa4#
- 2.Qc4#
- 1...a4
- 2.Qd3#
- 2.Qxa4#
- 2.Qc4#
- 2.Qb4#
- 2.Qc5#
- 1...Rb1!
- threat
- 1.Sfe5?
- threat
- 2.Qa4#
- 2.Qc4#
- 2.Qc5#
- 1...Rxe4
- 2.Qc4#
- 2.Qc5#
- 1...c2
- 2.Qc4#
- 2.Qb2#
- 2.Qc5#
- 1...Ra1
- 2.Qc4#
- 2.Qc5#
- 1...Bd5
- 2.Qc5#
- 2.Qxd5#
- 1...Ba6
- 2.Qd7#
- 2.Qc5#
- 2.Qd5#
- 1...Bc6
- 2.Qc4#
- 2.Qc5#
- 1...Sc6
- 2.Qc4#
- 2.Qc5#
- 2.Qd5#
- 1...Se6
- 2.Qa4#
- 2.Qc4#
- 1...a4
- 2.Qxa4#
- 2.Qc4#
- 2.Qb4#
- 2.Qc5#
- 1...Rb1!
- threat
- 1.Sd6?
- threat
- 2.Qc4#
- 1...Bd5
- 2.Qxd5#
- 1...Ba6
- 2.Qd5#
- 1...Rb1!
- threat
- 1.Sxd8?
- threat
- 2.Se6#
- 1...Bd5
- 2.Qxd5#
- 1...Bc8
- 2.Sc6#
- 2.Qd5#
- 1...c2!
- threat
- 1.Bxb7?
- threat
- 2.Qd5#
- 1...Rb1
- 2.e5#
- 1...c2!
- threat
- 1.Qd7+?
- 1...Bd5
- 2.Qxd5#
- 1...Kc4!
- 1...Bd5
- 1.e5+?
- 1...Be4
- 2.Qd5#
- 1...Re4!
- 1...Be4
- 1.Sc1?
- Keys
- 1.Sf4!
- threat
- 2.Qd3#
- 1...Ke3
- 2.Qd3#
- 1...Kxe4
- 2.Qd3#
- 1...Bxe4
- 2.Qc5#
- 1...Sxf7
- 2.Se6#
- 1...Rb1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Re3
- 2.Qa4#
- 1...Ba6
- 2.Qc5#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- R(a);SBLOCK::B(E)
- B(h);N_GUARD,P_SPINB(h),XP(B)::QAR1(D)
- B(h);N_GUARD::QAR1(D),XB(h)
- B(h);N_GUARD::QAR1(D)
- S(i);S_CUTB(h)::QAR1(D)
- Tries
- Try
- S(A);
- Threat
- DUALS(4)
- Refutation
- R(a);XS(A)
- Try
- S(A);
- Threat
- DUALS(5)
- Vars
- S(i);XS(G)::QAB1(D)
- Refutation
- P(d);XS(A)
- Try
- S(A);
- Threat
- DUALS(3)
- Refutation
- P(g);XS(A)
- Try
- S(A);
- Threat
- DUALS(3)
- Vars
- P(d);::QAR1(D)
- B(h);::QAR1(D)
- B(h);::S(A)
- Refutation
- R(a);P_PINQ(D)
- Try
- S(A);
- Threat
- DUALS(4)
- Vars
- S(i);XS(G)::QAB1(D)
- Refutation
- R(a);P_PINQ(D)
- Try
- S(G);
- Threat
- DUALS(3)
- Refutation
- R(a);P_PINQ(D)
- Try
- S(G);
- Threat
- QAR1(D)
- Vars
- B(h);N_GUARD::QAR1(D),XB(h)
- B(h);N_GUARD::QAR1(D)
- Refutation
- R(a);P_PINQ(D)
- Try
- S(G);XS(i)
- Threat
- S(G)
- Vars
- B(h);N_GUARD::QAR1(D),XB(h)
- Refutation
- P(d);
- Try
- B(H);XB(h)
- Threat
- QAR1(D)
- Vars
- R(a);N_GUARD,P_PINQ(D)::R(C)+P(B)
- Refutation
- P(d);
- Try
- Q(D);CHECK
- Vars
- B(h);N_GUARD,P_SPINB(h)::QAR1(D),XB(h)
- Refutation
- K(e);P-FLIGHT
- Try
- P(B);CHECK
- Vars
- B(h);P_SPINB(h)::QAR1(D)
- Refutation
- R(a);P_SPINR(a)
- Try
- Actual
- S(A);
- Threat
- QAR1(D)
- Vars
- K(e);S_FLIGHT::QAR1(D)
- K(e);P-FLIGHT,P_SPINB(h),XP(B)::QAB1(D)
- B(h);XP(B)::QAB1(D)
- S(i);N_GUARD,XS(G)::S(A)
- R(a);N_GUARD,P_PINQ(D)::S(A)
- R(a);N_GUARD::S(A)
- R(a);SBLOCK::QAR(D)
- B(h);::QAB1(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).