MESON Chess Problem Database
Problem Display
PID: 87758 (1Q6/p7/8/8/p5p1/Bq4pp/p3RPP1/rk3K1R w - - 0 1)
Rosner, Eugene David
The Problemist, 1985
#2
7 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Qxb2#
- 1...Qb4
- 2.Qxb4#
- 1...Qb5
- 2.Qxb5#
- 1...Qb7
- 2.Qxb7#
- 1...gxf2
- 2.Kxf2#
- 1...hxg2+
- 2.Kxg2#
- 1...Qb2
- Tries
- 1.Ke1?
- threat
- 2.Kd2#
- 1...Qb4+
- 2.Qxb4#
- 1...gxf2+
- 2.Kxf2#
- 1...Qb2
- 2.Qxb2#
- 1...hxg2!
- threat
- 1.Rb2+?
- 1...Qxb2
- 2.Qxb2#
- 1...Kc1!
- 1...Qxb2
- 1.fxg3?
- threat
- 2.Kf2#
- 1...hxg2+
- 2.Kxg2#
- 1...Qb6!
- threat
- 1.gxh3?
- threat
- 2.Kg2#
- 1...g2+
- 2.Kxg2#
- 1...gxf2
- 2.Kxf2#
- 1...Qb7
- 2.Qxb7#
- 1...gxh3!
- threat
- 1.Ke1?
- Keys
- 1.Rd2!
- threat
- 2.Ke2#
- 1...Qb5+
- 2.Qxb5#
- 1...hxg2+
- 2.Kxg2#
- 1...gxf2
- 2.Kxf2#
- threat
- 1.Rd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- Q(d);OGATE::QAR1(G),XQ(d)
- Q(d);OGATEB::QAR(G),XQ(d)
- Q(d);OGATEB,P_PINR(C)::QAR(G),XQ(d)
- P(e);XP(D)::R(B)+K(A),XP(e)
- P(f);CHECK,XP(E)::R(B)+K(A),XP(f)
- Tries
- Try
- K(A);P-FLIGHT
- Threat
- R(B)+K(A)
- Vars
- Q(d);CHECK,OGATEB::QAR(G),XQ(d)
- P(e);CHECK,XP(D)::R(B)+K(A),XP(e)
- Q(d);OGATE::QAR1(G),XQ(d)
- Refutation
- P(f);XP(E)
- Try
- R(C);CHECK,N_PINQ(d)
- Vars
- Q(d);OGATE,P_SPINQ(d),XR(C)::QAR1(G),XQ(d)
- Refutation
- K(b);P-FLIGHT
- Try
- P(D);XP(e)
- Threat
- R(B)+K(A)
- Vars
- P(f);CHECK,XP(E)::R(B)+K(A),XP(f)
- Refutation
- Q(d);
- Try
- P(E);XP(f)
- Threat
- R(B)+K(A)
- Vars
- P(e);CHECK::R(B)+K(A),XP(e)
- P(e);XP(D)::R(B)+K(A),XP(e)
- Q(d);OGATEB::QAR(G),XQ(d)
- Refutation
- P(h);XP(E)
- Try
- Actual
- R(C);
- Threat
- R(B)+K(A)
- Vars
- Q(d);CHECK,OGATEB::QAR(G),XQ(d)
- P(f);CHECK,XP(E)::R(B)+K(A),XP(f)
- P(e);XP(D)::R(B)+K(A),XP(e)
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).