MESON Chess Problem Database
Problem Display
PID: 161972 (1N6/8/1bppB3/R3n3/2Qqk3/r2R4/2P1K2B/8 w - - 0 1)
Alecu, Petre
Revista Romana de Sah, 1978
#2
8 + 7
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Re3#
- 1...Ra2
- 2.Re3#
- 1...Ra4
- 2.Re3#
- 1...Rxa5
- 2.Re3#
- 1...Bxa5
- 2.Rxd4#
- 2.Qxd4#
- 1...Bc7
- 2.Rxd4#
- 2.Qxd4#
- 1...Bd8
- 2.Rxd4#
- 2.Qxd4#
- 1...Sxd3
- 2.Bf5#
- 1...Sf3
- 2.Bf5#
- 1...Sxc4
- 2.Bf5#
- 1...Sg4
- 2.Bf5#
- 1...Sg6
- 2.Bf5#
- 1...Sd7
- 2.Bf5#
- 1...Sf7
- 2.Bf5#
- 1...Ra1
- Tries
- 1.Rdxa3?
- threat
- 2.Re3#
- 1...Sxc4
- 2.Bf5#
- 1...Sd3
- 2.Bf5#
- 2.cxd3#
- 1...Sg4
- 2.Bf5#
- 1...Qxc4+!
- threat
- 1.Qxc6+?
- 1...Qd5
- 2.Qxd5#
- 1...Sxc6
- 2.Bf5#
- 1...d5!
- 1...Qd5
- 1.Rdxa3?
- Keys
- 1.Sd7!
- threat
- 2.Sf6#
- 1...Sxc4
- 2.Bf5#
- 1...Sxd7
- 2.Bf5#
- 1...Bd8
- 2.Rxd4#
- 2.Qxd4#
- 1...Sg4
- 2.Bf5#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::R1(D)
- R(a);N_GUARD,P_PINP(A)::R1(D)
- R(a);N_GUARD,XR(F)::R1(D)
- S(d);XR(D)::B(G)
- S(d);::B(G)
- S(d);N_SPINQ(b),XQ(E)::B(G)
- Tries
- Try
- R(D);XR(a)
- Threat
- R1(D)
- Vars
- S(d);N_SPINQ(b),XQ(E)::B(G)
- S(d);::B(G)
- Refutation
- Q(b);CHECK,N_SPINQ(b),XQ(E)
- Try
- Q(E);CHECK,N_PINQ(b),XP(f)
- Vars
- Q(b);N_GUARD,P_SPINQ(b)::QAB1(E),XQ(b)
- S(d);XQ(E)::B(G)
- Refutation
- P(g);P_SPINP(g)
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- S(d);N_SPINQ(b),XQ(E)::B(G)
- S(d);XS(H)::B(G)
- S(d);::B(G)
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).