MESON Chess Problem Database
Problem Display
PID: 148599 (nQb5/1pr4p/1R6/1pp1kp1N/P4R1N/1BKPp3/2P4n/B7 w - - 0 1)
Levy, Maurice
British Chess Magazine, 1901
#2
11 + 11
| 1940 | Caissa | 1980 |
SOLUTION
- SOUND
- Sets
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Qh8#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sg4
- 2.Sf3#
- 1...Sxb6
- 2.Qxc7#
- 1...e2
- 2.Kd2#
- 1...bxa4
- 2.Kc4#
- 1...b4+
- 2.Kc4#
- 1...h6
- 2.Sg6#
- 1...Be6
- Tries
- 1.Kb2?
- threat
- 2.Kb1#
- 2.Kc1#
- 2.Ka2#
- 2.Ka3#
- 1...Sxb6
- 2.Qxc7#
- 1...Sf3
- 2.Sxf3#
- 1...b4
- 2.Kb1#
- 2.Kc1#
- 2.Ka2#
- 1...c4!
- threat
- 1.Bb2?
- 1...b4+
- 2.Kc4#
- 1...Sxb6
- 2.Qxc7#
- 1...bxa4
- 2.Kc4#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Qh8#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sg4
- 2.Sf3#
- 1...e2
- 2.Kd2#
- 1...h6
- 2.Sg6#
- 1...c4!
- 1...b4+
- 1.Ba2?
- 1...b4+
- 2.Kc4#
- 1...Sxb6
- 2.Qxc7#
- 1...bxa4
- 2.Kc4#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Qh8#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sg4
- 2.Sf3#
- 1...e2
- 2.Kd2#
- 1...h6
- 2.Sg6#
- 1...c4!
- 1...b4+
- 1.Bc4?
- threat
- 2.Kb3#
- 1...Sxb6
- 2.Qxc7#
- 1...bxc4
- 2.Kxc4#
- 1...Sf3
- 2.Sxf3#
- 1...bxa4!
- threat
- 1.Bf7?
- threat
- 2.Kb3#
- 1...Sxb6
- 2.Qxc7#
- 1...bxa4
- 2.Kc4#
- 1...Sf3
- 2.Sxf3#
- 1...c4
- 2.d4#
- 1...Be6!
- threat
- 1.Bg8?
- threat
- 2.Kb3#
- 1...Sxb6
- 2.Qxc7#
- 1...bxa4
- 2.Kc4#
- 1...Sf3
- 2.Sxf3#
- 1...c4
- 2.d4#
- 1...Be6!
- threat
- 1.Qxc8?
- threat
- 2.Rxf5#
- 2.Re6#
- 2.Qxf5#
- 2.Qe6#
- 1...b4+
- 2.Kc4#
- 1...Rxc8
- 2.Rxf5#
- 2.Re6#
- 1...Sxb6
- 2.Qe6#
- 2.Qxc7#
- 1...c4
- 2.Rxf5#
- 2.Qxf5#
- 2.Qe6#
- 1...Rd7
- 2.Rxf5#
- 2.Re6#
- 1...Re7
- 2.Rxf5#
- 2.Qxf5#
- 2.Qxc5#
- 1...Rf7
- 2.Re6#
- 2.Qe6#
- 2.Qxc5#
- 1...Rc6!
- threat
- 1.axb5?
- threat
- 2.Kc4#
- 1...Sxb6
- 2.Qxc7#
- 1...Be6
- 2.Rxe6#
- 1...Sf3
- 2.Sxf3#
- 1...c4!
- threat
- 1.a5?
- 1...b4+
- 2.Kc4#
- 1...Sxb6
- 2.Qxc7#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Qh8#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sg4
- 2.Sf3#
- 1...e2
- 2.Kd2#
- 1...h6
- 2.Sg6#
- 1...c4!
- 1...b4+
- 1.Kb2?
- Keys
- 1.Rb4!
- 1...cxb4+
- 2.Kxb4#
- 1...Sxb6
- 2.Qxc7#
- 1...bxa4
- 2.Kc4#
- 1...c4
- 2.R4xb5#
- 1...f4
- 2.Re4#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Qh8#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sg4
- 2.Sf3#
- 1...e2
- 2.Kd2#
- 1...h6
- 2.Sg6#
- 1...cxb4+
- 1.Rb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- B(k);N_GUARD::R1(J),XB(k)
- B(k);OGATE::QAB(K)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- P(b);::B(A)+K(D)
- P(c);XP(F)::B(A)+K(D)
- P(c);CHECK::B(A)+K(D)
- P(i);N_GUARD::S(H)
- Tries
- Try
- K(D);S_FLIGHT
- Threat
- DUALS(4)
- Vars
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- P(d);
- Try
- B(A);
- Vars
- P(c);CHECK::B(A)+K(D)
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- P(c);XP(F)::B(A)+K(D)
- B(k);N_GUARD::R1(J),XB(k)
- B(k);OGATE::QAB(K)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(b);::B(A)+K(D)
- P(i);N_GUARD::S(H)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- P(c);CHECK::B(A)+K(D)
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- P(c);XP(F)::B(A)+K(D)
- B(k);N_GUARD::R1(J),XB(k)
- B(k);OGATE::QAB(K)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(b);::B(A)+K(D)
- P(i);N_GUARD::S(H)
- Refutation
- P(d);
- Try
- B(C);
- Threat
- B(A)+K(D)
- Vars
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- P(c);XB(C)::B(A)+K(D),XP(c)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- P(c);XP(F)
- Try
- B(C);
- Threat
- B(A)+K(D)
- Vars
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- P(c);XP(F)::B(A)+K(D)
- S(a);N_GUARD::S(H),XS(a)
- P(d);N_GUARD::P(E)
- Refutation
- B(k);
- Try
- B(C);
- Threat
- B(A)+K(D)
- Vars
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- P(c);XP(F)::B(A)+K(D)
- S(a);N_GUARD::S(H),XS(a)
- P(d);N_GUARD::P(E)
- Refutation
- B(k);
- Try
- Q(K);N_PINR(h),XB(k)
- Threat
- DUALS(4)
- Vars
- P(c);CHECK::B(A)+K(D)
- Refutation
- R(h);
- Try
- P(F);XP(c)
- Threat
- B(A)+K(D)
- Vars
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- B(k);N_GUARD::R1(J),XB(k)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- P(d);
- Try
- P(F);
- Vars
- P(c);CHECK::B(A)+K(D)
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- B(k);N_GUARD::R1(J),XB(k)
- B(k);OGATE::QAB(K)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(b);::B(A)+K(D)
- P(i);N_GUARD::S(H)
- Refutation
- P(d);
- Try
- Actual
- R(G);
- Vars
- P(d);CHECK,XR(G)::B(A)+K(D),XP(d)
- S(j);N_GUARD,XR(J)::QAB(K),XR(h)
- P(c);XP(F)::B(A)+K(D)
- P(d);OGATEB::R(G),XP(c)
- P(f);N_GUARD::R1(G)
- B(k);N_GUARD::R1(J),XB(k)
- B(k);OGATE::QAB(K)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(b);::B(A)+K(D)
- P(i);N_GUARD::S(H)
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).