MESON Chess Problem Database
Problem Display
PID: 251283 (5B2/1Bp5/1qN5/1p1k2r1/3N2p1/1K6/8/1Q1R4 w - - 0 1)
Bakcsi, Gyorgy
Schakend Nederland, 1984
#2
7 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Sb4#
- 1...Rf5
- 2.Qxf5#
- 1...Rg6
- 2.Qf5#
- 1...Rg7
- 2.Qf5#
- 1...Rg8
- 2.Qf5#
- 1...Re5
- Tries
- 1.Se2+?
- 1...Qd4
- 2.Sf4#
- 1...Ke6!
- 1...Qd4
- 1.Sxb5+?
- 1...Qd4
- 2.Sxc7#
- 1...Ke6!
- 1...Qd4
- 1.Se6+?
- 1...Qd4
- 2.Sf4#
- 2.Sxc7#
- 1...Kxe6!
- 1...Qd4
- 1.Bc8?
- threat
- 2.Be6#
- 1...Qxc6
- 2.Sf3#
- 1...Re5
- 2.Sb4#
- 1...Rg6
- 2.Qf5#
- 1...Qxd4!
- threat
- 1.Qg6?
- threat
- 2.Qe6#
- 1...Qxd4
- 2.Rxd4#
- 1...Re5
- 2.Sb4#
- 1...Rxg6!
- threat
- 1.Se2+?
- Keys
- 1.Re1!
- threat
- 2.Qe4#
- 1...Qxd4
- 2.Sb4#
- 1...Re5
- 2.Rxe5#
- threat
- 1.Re1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(d);SBLOCK::B(F)+S(E),DCHECK
- R(d);N_GUARD::QAR2(A),XR(d)
- R(d);N_GUARD::QAR2(A)
- Tries
- Try
- S(D);CHECK
- Vars
- Q(e);P_SPINQ(e)::S(D)
- Refutation
- K(c);S_FLIGHT
- Try
- S(D);CHECK,P_SPINS(D),XP(b)
- Vars
- Q(e);N_PINS(D),P_SPINQ(e)::S(D),XP(f)
- Refutation
- K(c);S_FLIGHT
- Try
- S(D);CHECK
- Refutation
- K(c);S_FLIGHT,XS(D)
- Try
- B(F);
- Threat
- B(F)
- Vars
- Q(e);N_GUARD,SBLOCK,XS(E)::R(B)+S(D)
- R(d);SBLOCK::S(E)
- R(d);N_GUARD::QAR2(A)
- Refutation
- Q(e);P_SPINQ(e),XS(D)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(e);OGATE,P_SPINQ(e),XS(D)::R1(B),XQ(e)
- R(d);SBLOCK::B(F)+S(E),DCHECK
- Refutation
- R(d);XQ(A)
- Try
- Actual
- R(B);
- Threat
- QAB1(A)
- Vars
- Q(e);SBLOCK,XS(D)::B(F)+S(E),DCHECK
- R(d);N_GUARD::R1(B),XR(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).