MESON Chess Problem Database
Problem Display
PID: 176235 (8/K5p1/2N2kP1/2N2P2/1p1q2PP/2R5/3R4/Q1Bb4 w - - 0 1)
Benedek, Attila
Schach-Echo, 1972
#2
11 + 5
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Rd6#
- 2.Re3#
- 1...Qf2
- 2.Rd6#
- 2.Re3#
- 1...Qxc3
- 2.Se4#
- 2.Sd7#
- 2.Rd6#
- 1...Qe3
- 2.Rxe3#
- 1...Qxc5+
- 2.Rxc5#
- 1...Qe5
- 2.Sd7#
- 1...Qxd2
- 2.Se4#
- 1...Qd3
- 2.Rcxd3#
- 1...Qc4
- 2.Sd7#
- 2.Rxc4#
- 1...Qe4
- 2.Sxe4#
- 2.Sd7#
- 1...Qf4
- 2.Sd7#
- 1...Qd6
- 2.Se4#
- 2.Rxd6#
- 1...Qd7+
- 2.Sxd7#
- 1...Qd8
- 2.Se4#
- 1...Qg1
- Tries
- 1.Rxd1?
- threat
- 2.Bg5#
- 1...Qxc5+
- 2.Rxc5#
- 1...Qd7+
- 2.Sxd7#
- 1...Qe3
- 2.Rxe3#
- 1...Qd2
- 2.Se4#
- 1...Qf4
- 2.Sd7#
- 1...Qxg4!
- threat
- 1.Re2?
- threat
- 2.Bg5#
- 2.Re6#
- 1...Qxc5+
- 2.Rxc5#
- 1...Qd7+
- 2.Sxd7#
- 1...Bxe2
- 2.Bg5#
- 1...Qe3
- 2.Rcxe3#
- 1...Qe5
- 2.Sd7#
- 2.Bg5#
- 1...Qd2
- 2.Se4#
- 2.Re6#
- 1...Qc4
- 2.Sd7#
- 2.Bg5#
- 2.Rxc4#
- 1...Qe4
- 2.Sxe4#
- 2.Sd7#
- 2.Bg5#
- 1...Qf4
- 2.Sd7#
- 2.Re6#
- 1...Qd5
- 2.Bg5#
- 1...Qd6
- 2.Se4#
- 2.Bg5#
- 1...Bb3
- 2.Bg5#
- 1...Qxg4!
- threat
- 1.Rxd4?
- threat
- 2.Se4#
- 2.Sd7#
- 2.Bg5#
- 2.Rd6#
- 1...Bc2
- 2.Sd7#
- 2.Bg5#
- 2.Rd6#
- 1...Bb3
- 2.Se4#
- 2.Sd7#
- 2.Bg5#
- 1...Bf3
- 2.Sd7#
- 2.Bg5#
- 2.Rd6#
- 1...Bxg4!
- threat
- 1.Ra3?
- threat
- 2.Qxd4#
- 1...Qxa1
- 2.Se4#
- 2.Sd7#
- 2.Rd6#
- 1...Qb2
- 2.Se4#
- 2.Sd7#
- 2.Bxb2#
- 2.Rd6#
- 2.Qxb2#
- 1...Qc3
- 2.Se4#
- 2.Sd7#
- 2.Rd6#
- 1...Qe5
- 2.Se4#
- 2.Sd7#
- 2.Rd6#
- 2.Qxe5#
- 1...Bxg4!
- threat
- 1.Rf3?
- threat
- 2.Qxd4#
- 2.g5#
- 1...Bxf3
- 2.Qxd4#
- 1...Qb2
- 2.Se4#
- 2.Sd7#
- 2.Bxb2#
- 2.Rd6#
- 2.Qxb2#
- 2.g5#
- 1...Qc3
- 2.Se4#
- 2.Sd7#
- 2.Rd6#
- 2.g5#
- 1...Qe5
- 2.Se4#
- 2.Sd7#
- 2.Rd6#
- 2.Qxe5#
- 2.g5#
- 1...Qxa1+!
- threat
- 1.Rxd1?
- Keys
- 1.Rf2!
- threat
- 2.Bg5#
- 2.g5#
- 1...Qxc5+
- 2.Rxc5#
- 1...Qd7+
- 2.Sxd7#
- 1...Qxf2
- 2.Bg5#
- 1...Qxg4
- 2.Sd7#
- 1...Bxg4
- 2.Bg5#
- 1...Qe3
- 2.Rxe3#
- 1...Qd2
- 2.Se4#
- 1...Qf4
- 2.Sd7#
- 1...Bf3
- 2.Bg5#
- threat
- 1.Rf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- Q(c);OGATEB::QAB(A)+R(D),XQ(c)
- Q(c);CHECK,OGATE,XS(G)::QAB(A)+R(D),XQ(c)
- Q(c);N_PINS(G)::S(G)
- Q(c);N_PINS(G),XR(C)::S(G)
- Q(c);N_PINS(G),OGATEB::QAB(A)+R(D),XQ(c)
- Q(c);CHECK,N_PINS(G)::S(G),XQ(c)
- Tries
- Try
- R(C);XB(a)
- Threat
- B(B)
- Vars
- Q(c);CHECK,OGATE,XS(G)::QAB(A)+R(D),XQ(c)
- Q(c);CHECK,N_PINS(G)::S(G),XQ(c)
- Q(c);OGATEB::QAB(A)+R(D),XQ(c)
- Q(c);N_PINS(G)::S(G)
- Refutation
- Q(c);N_PINS(G),XP(E)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,OGATE,XS(G)::QAB(A)+R(D),XQ(c)
- Q(c);CHECK,N_PINS(G)::S(G),XQ(c)
- B(a);XR(C)::B(B)
- Q(c);OGATEB::QAB(A)+R(D),XQ(c)
- Q(c);N_PINS(G)::B(B)
- B(a);::B(B)
- Refutation
- Q(c);N_PINS(G),XP(E)
- Try
- R(C);N_SPINS(G),XQ(c)
- Threat
- DUALS(4)
- Refutation
- B(a);XP(E)
- Try
- R(D);P_PINQ(c)
- Threat
- QAB(A),XQ(c)
- Refutation
- B(a);XP(E)
- Try
- R(D);P_PINQ(c)
- Threat
- DUALS(2)
- Vars
- B(a);XR(D)::QAB(A),XQ(c)
- Refutation
- Q(c);CHECK,N_PINS(G),N_SPINQ(c),XQ(A)
- Try
- Actual
- R(C);
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,OGATE,XS(G)::QAB(A)+R(D),XQ(c)
- Q(c);CHECK,N_PINS(G)::S(G),XQ(c)
- Q(c);XR(C)::B(B)
- Q(c);N_PINS(G),XP(E)::S(G)
- B(a);XP(E)::B(B)
- Q(c);OGATEB::QAB(A)+R(D),XQ(c)
- Q(c);N_PINS(G)::S(G)
- B(a);::B(B)
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).