MESON Chess Problem Database
Problem Display
PID: 11608 (1nQ2r1q/1PN1p1p1/2kP3p/B1NR4/Pp6/r4R2/p6K/7B w - - 0 1)
Mansfield, Comins
1st Prize, Problem (Zagreb), 1970-1971
#2
11 + 10
| 3751 | FIDE Album (1968-1970) | 1977 |
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Sa6
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Sa6
- Tries
- 1.S7a6+?
- 1...Rxc8
- 2.Sxb4#
- 1...Kxd5!
- 1...Rxc8
- 1.Rfd3?
- threat
- 2.Se8#
- 2.Rf5#
- 1...Rxd3
- 2.Se8#
- 1...Rxa4
- 2.Rf5#
- 1...Rxc8
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...exd6
- 2.Se8#
- 1...a1Q
- 2.Se8#
- 1...a1R
- 2.Se8#
- 1...Qg8
- 2.Se8#
- 1...Rf1
- 2.Se8#
- 1...Rf3
- 2.Se8#
- 1...Rf4
- 2.Se8#
- 1...Rf5
- 2.Se8#
- 2.Rxf5#
- 1...Rd8
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...Re8
- 2.Sxe8#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...Sa6
- 2.Rf5#
- 2.Qd7#
- 1...e5
- 2.Se8#
- 1...Rf2+!
- threat
- 1.Rff5?
- threat
- 2.Se8#
- 2.Rd3#
- 1...Rxa4
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rd4#
- 1...Rxf5
- 2.Se8#
- 1...Rxc8
- 2.Rd3#
- 1...exd6
- 2.Se8#
- 1...a1Q
- 2.Se8#
- 1...a1R
- 2.Se8#
- 1...Qg8
- 2.Se8#
- 1...Rd3
- 2.Se8#
- 2.Rxd3#
- 1...Re3
- 2.Se8#
- 1...Rf3
- 2.Se8#
- 1...Rg3
- 2.Se8#
- 1...Rd8
- 2.Rd3#
- 1...Re8
- 2.Sxe8#
- 2.Rd3#
- 1...Sa6
- 2.Rd3#
- 2.Qd7#
- 1...e5
- 2.Se8#
- 1...Rh3+!
- threat
- 1.Rdd3?
- threat
- 2.Se8#
- 2.Rf5#
- 1...Kxc5
- 2.Sa6#
- 2.Se6#
- 1...Rxa4
- 2.Rf5#
- 1...Rxf3
- 2.Se8#
- 1...Rxc8
- 2.Rf5#
- 1...exd6
- 2.Se8#
- 1...a1Q
- 2.Se8#
- 1...a1R
- 2.Se8#
- 1...Sa6
- 2.Rf5#
- 1...Qg8
- 2.Se8#
- 1...Rf4
- 2.Se8#
- 1...Rf5
- 2.Se8#
- 2.Rxf5#
- 1...Rd8
- 2.Rf5#
- 1...Re8
- 2.Sxe8#
- 2.Rf5#
- 1...e5
- 2.Se8#
- 1...Rxd3!
- threat
- 1.Rd4?
- threat
- 2.Se8#
- 1...Kxc5
- 2.Se6#
- 1...Rxa4
- 2.Rf5#
- 1...Rxc8
- 2.Rc3#
- 1...Rd8
- 2.Rc3#
- 1...Re8
- 2.Sxe8#
- 2.Rc3#
- 1...Sa6!
- threat
- 1.Qe8+?
- 1...Sd7
- 2.Qxd7#
- 2.b8S#
- 1...Rxe8!
- 1...Sd7
- 1.S7a6+?
- Keys
- 1.Re5!
- threat
- 2.Se8#
- 1...Kxd6
- 2.Qe6#
- 1...Rxa4
- 2.Rf6#
- 1...Rxc8
- 2.Rd3#
- 1...Sa6
- 2.Qd7#
- 1...Rd8
- 2.Rd3#
- 1...Re8
- 2.Sxe8#
- 2.Rd3#
- threat
- 1.Re5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- S(h);N_GUARD::QAB1(K)
- S(h);N_GUARD::QAB1(K),XS(h)
- Tries
- Try
- S(J);CHECK
- Vars
- R(i);XQ(K)::S(J),XP(c)
- Refutation
- K(d);S_FLIGHT,XR(G)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(b);XR(C)::QAR(K)+S(J)
- R(b);XP(D)::B(A)+R(G)
- P(f);XP(H)::QAR(K)+S(J)
- P(a);::QAR(K)+S(J)
- Q(j);::QAR(K)+S(J)
- R(i);::QAR(K)+S(J)
- P(f);::QAR(K)+S(J)
- Refutation
- R(i);CHECK
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(i);XR(C)::QAR(K)+S(J)
- R(i);XQ(K)::B(A)+R(G)
- P(f);XP(H)::QAR(K)+S(J)
- P(a);::QAR(K)+S(J)
- Q(j);::QAR(K)+S(J)
- R(b);::QAR(K)+S(J)
- R(i);::B(A)+R(G)
- P(f);::QAR(K)+S(J)
- Refutation
- R(b);CHECK
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(b);XP(D)::B(A)+R(C)
- R(i);P_SPINR(i),XR(C)::QAR(K)+S(J)
- R(i);XQ(K)::B(A)+R(C)
- P(f);XP(H)::QAR(K)+S(J)
- P(a);::QAR(K)+S(J)
- S(h);::B(A)+R(C)
- Q(j);::QAR(K)+S(J)
- R(i);::QAR(K)+S(J)
- R(i);::B(A)+R(C)
- P(f);::QAR(K)+S(J)
- Refutation
- R(b);XR(G)
- Try
- R(G);
- Threat
- QAR(K)+S(J)
- Vars
- K(d);P-FLIGHT,XS(F)::QAR(K)+S(J),DCHECK
- R(b);N_GUARD,XP(D)::B(A)+R(C)
- R(i);N_GUARD,XQ(K)::B(A)+R(C)
- R(i);N_GUARD::B(A)+R(C)
- Refutation
- S(h);
- Try
- Q(K);CHECK
- Refutation
- R(i);XQ(K)
- Try
- Actual
- R(G);
- Threat
- QAR(K)+S(J)
- Vars
- K(d);OGATEB,P-FLIGHT,XP(H)::QAR1(K)
- R(b);N_GUARD,XP(D)::B(A)+R(C)
- R(i);N_GUARD,XQ(K)::B(A)+R(C)
- S(h);N_GUARD::QAB1(K)
- R(i);N_GUARD::B(A)+R(C)
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).