MESON Chess Problem Database
Problem Display
PID: 243908 (1R2b3/4rp1p/2pN1P1P/2kB2nK/P1N5/3Q1p1p/3BRP1P/4q3 w - - 0 1)
Fleck, Ferenc
Skakbladet, 1951
#2
13 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Bb4#
- 1...Qa1
- 2.Bb4#
- 1...Qc1
- 2.Bb4#
- 1...Qd1
- 2.Bb4#
- 1...Qf1
- 2.Bb4#
- 1...Qg1
- 2.Bb4#
- 1...Qh1
- 2.Bb4#
- 1...Qxe2
- 2.Bb4#
- 1...Rxe2
- 2.Sb7#
- 1...Re3
- 2.Sb7#
- 2.Bxe3#
- 1...Re4
- 2.Sb7#
- 1...Re5
- 2.Sb7#
- 1...Re6
- 2.Sb7#
- 1...Ra7
- 2.Be3#
- 1...Rb7
- 2.Sxb7#
- 1...Rc7
- 2.Be3#
- 1...Rd7
- 2.Be3#
- 1...Bd7
- 2.Sb7#
- 1...Se4
- 2.Be3#
- 1...Se6
- 2.Se4#
- 1...Qxf2
- Tries
- 1.Se4+?
- 1...Sxe4
- 2.Be3#
- 1...Rxe4!
- 1...Sxe4
- 1.Bxe1?
- threat
- 2.Bb4#
- 1...Rb7
- 2.Sxb7#
- 1...cxd5!
- threat
- 1.Be6?
- threat
- 2.Be3#
- 2.Qe3#
- 1...Qxd2
- 2.Re5#
- 1...Qxf2
- 2.Bb4#
- 2.Re5#
- 1...Qxe2
- 2.Bb4#
- 1...Rxe6
- 2.Sb7#
- 1...Sxe6
- 2.Se4#
- 1...Qa1
- 2.Bb4#
- 1...Qc1
- 2.Bb4#
- 2.Re5#
- 2.Qe3#
- 1...Rb7
- 2.Sxb7#
- 2.Qe3#
- 1...fxe6+!
- threat
- 1.Rxe1?
- threat
- 2.Bb4#
- 1...Rb7
- 2.Sxb7#
- 1...cxd5!
- threat
- 1.Se4+?
- Keys
- 1.Re5!
- 1...Qxd2
- 2.Be6#
- 1...Qxf2
- 2.Bb4#
- 2.Be6#
- 1...Qxe5
- 2.Bb4#
- 1...Rxe5
- 2.Sb7#
- 1...cxd5
- 2.Qxd5#
- 1...Qa1
- 2.Bb4#
- 1...Qb1
- 2.Be3#
- 2.Be6#
- 2.Qe3#
- 1...Qc1
- 2.Bb4#
- 2.Be6#
- 2.Qe3#
- 1...Qd1
- 2.Be3#
- 2.Bb4#
- 2.Be6#
- 2.Qe3#
- 1...Qf1
- 2.Be3#
- 2.Bb4#
- 2.Be6#
- 2.Qe3#
- 1...Qg1
- 2.Be3#
- 2.Bb4#
- 2.Be6#
- 2.Qe3#
- 1...Qh1
- 2.Be3#
- 2.Bb4#
- 2.Be6#
- 2.Qe3#
- 1...Qe2
- 2.Bb4#
- 1...Qe3
- 2.Bxe3#
- 2.Bb4#
- 2.Qxe3#
- 1...Qe4
- 2.Bb4#
- 1...Re6
- 2.Sb7#
- 1...Ra7
- 2.Be4#
- 1...Rb7
- 2.Sxb7#
- 2.Be4#
- 1...Rc7
- 2.Be4#
- 1...Rd7
- 2.Be4#
- 1...Bd7
- 2.Sb7#
- 1...Se4
- 2.Be6#
- 1...Se6
- 2.Be4#
- 1...Qxd2
- 1.Re5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD,XP(C)::B(A)
- Q(a);N_GUARD::B(A)
- Q(a);N_GUARD,XR(B)::B(A)
- R(g);N_GUARD,XR(B)::S(J)
- R(g);N_GUARD::S(J)
- R(g);N_GUARD::B(A)
- R(g);N_GUARD::S(J),XR(g)
- B(j);S_CUTR(g)::S(J)
- S(e);S_CUTR(g)::B(A)
- S(e);N_GUARD,S_CUTR(g)::S(J)
- Tries
- Try
- S(J);CHECK
- Vars
- S(e);XS(J)::B(A)
- Refutation
- R(g);XS(J)
- Try
- B(A);XQ(a)
- Threat
- B(A)
- Vars
- R(g);N_GUARD::S(J),XR(g)
- Refutation
- P(f);XB(H)
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XB(A)::R(B)
- Q(a);N_GUARD,XR(B)::B(A)
- R(g);N_GUARD,XB(H)::S(J)
- S(e);N_GUARD,XB(H)::S(J)
- Q(a);N_GUARD::B(A)
- Refutation
- P(h);CHECK,XB(H)
- Try
- R(B);XQ(a)
- Threat
- B(A)
- Vars
- R(g);N_GUARD::S(J),XR(g)
- Refutation
- P(f);XB(H)
- Try
- Actual
- R(B);
- Vars
- Q(a);N_GUARD,XB(A)::R(B)+B(H)
- Q(a);N_GUARD,XR(B)::B(A)
- R(g);N_GUARD,XR(B)::S(J)
- P(f);OGATE,P_SPINP(f),XB(H)::QAR1(E),XP(f)
- Q(a);N_GUARD::B(A)
- R(g);N_GUARD::S(J)
- R(g);N_GUARD::R(B)+B(H)
- B(j);S_CUTR(g)::S(J)
- S(e);S_CUTQ(a)::R(B)+B(H)
- S(e);S_CUTR(g)::R(B)+B(H)
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).