MESON Chess Problem Database
Problem Display
PID: 43565 (7b/BQ6/p2p4/R1nnk1P1/p7/1b1p2PB/1PNNqP1K/2r1R3 w - - 0 1)
Martin, Godefroy Jose
3rd HM., British Chess Magazine, 1947
#2
12 + 11
| 461 | Schach-Express | 1948 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Sf3#
- 1...Se4
- 2.Bd4#
- 2.Qe7#
- 1...Sxb7
- 2.Bd4#
- 1...Sd7
- 2.Bd4#
- 1...Sc3
- 2.Sf3#
- 1...Se3
- 2.Qe4#
- 1...Sb4
- 2.Sf3#
- 1...Sf4
- 2.Sf3#
- 1...Sb6
- 2.Sf3#
- 1...Sf6
- 2.Sf3#
- 1...Sc7
- 2.Sf3#
- 1...Se7
- 2.Sf3#
- 1...Qe4
- Tries
- 1.Sd4?
- threat
- 2.S4f3#
- 2.Sc6#
- 1...Rxe1
- 2.Sc6#
- 1...Sxb7
- 2.S4f3#
- 1...Se4
- 2.Qe7#
- 1...Se6
- 2.S4f3#
- 1...Sd7
- 2.S4f3#
- 1...Sc3
- 2.S2f3#
- 2.S4f3#
- 1...Se3
- 2.Qe4#
- 1...Sb4
- 2.S2f3#
- 2.S4f3#
- 1...Sf4
- 2.S2f3#
- 2.S4f3#
- 1...Sb6
- 2.S2f3#
- 2.S4f3#
- 1...Sf6
- 2.S2f3#
- 2.S4f3#
- 1...Sc7
- 2.S2f3#
- 2.S4f3#
- 1...Se7
- 2.S2f3#
- 2.S4f3#
- 1...Kxd4!
- threat
- 1.Rxe2+?
- 1...Se4
- 2.Sf3#
- 2.Bd4#
- 2.Rxe4#
- 2.Qe7#
- 2.f4#
- 1...Se3
- 2.Sf3#
- 2.Rxe3#
- 2.Qe4#
- 2.f4#
- 1...dxe2!
- 1...Se4
- 1.Qe7+?
- 1...Se6
- 2.Bd4#
- 2.Qxe6#
- 1...Sxe7!
- 1...Se6
- 1.Qh7?
- threat
- 2.Sf3#
- 2.Qf5#
- 1...Rxe1
- 2.Qf5#
- 1...Rxc2
- 2.Sf3#
- 1...Bxc2
- 2.Sf3#
- 1...dxc2
- 2.Sf3#
- 1...Sc3
- 2.Qf5#
- 1...Se3
- 2.Qe4#
- 1...Sb4
- 2.Qf5#
- 1...Sf4
- 2.Qf5#
- 1...Sb6
- 2.Qf5#
- 1...Sf6
- 2.Qf5#
- 1...Sc7
- 2.Qf5#
- 1...Se4
- 2.Bd4#
- 2.Qf5#
- 2.Qe7#
- 1...Se7!
- threat
- 1.Sd4?
- Keys
- 1.Sb4!
- threat
- 2.Sc6#
- 1...Kd4
- 2.Sc6#
- 1...Sxb7
- 2.Sxd3#
- 1...Sxb4
- 2.Sf3#
- 1...Se4
- 2.Qe7#
- 1...Se6
- 2.Sxd3#
- 1...Sd7
- 2.Sxd3#
- 1...Sc3
- 2.Sf3#
- 1...Se3
- 2.Qe4#
- 1...Sf4
- 2.Sf3#
- 1...Sb6
- 2.Sf3#
- 1...Sf6
- 2.Sf3#
- 1...Sc7
- 2.Sf3#
- 1...Se7
- 2.Sf3#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(b);N_PINP(E)::S(D)
- S(f);OGATE,P_SPINS(g),XQ(L)::B(K)
- S(f);OGATE,P_SPINS(g)::B(K)
- S(g);P_SPINS(f)::S(D)
- S(g);N_SPINQ(b),OGATE,P_SPINS(f)::QAR1(L)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(a);N_SPINQ(b),XR(A)::S(C)
- S(f);P_SPINS(g),XQ(L)::S(C)
- S(f);N_GUARD,N_SPINQ(b),P_SPINS(g)::QAR2(L)
- S(f);P_SPINS(g)::S(C)
- S(g);N_SPINQ(b),OGATE,P_SPINS(f)::QAR1(L)
- Refutation
- K(h);N_SPINQ(b),P_SPINS(f),S_FLIGHT,XS(C)
- Try
- R(A);CHECK,N_SPINP(E),XQ(b)
- Refutation
- P(d);XR(A)
- Try
- Q(L);CHECK
- Refutation
- S(g);P_SPINS(f),XQ(L)
- Try
- Q(L);
- Threat
- DUALS(2)
- Vars
- R(a);N_SPINQ(b),XR(A)::QAR1(L)
- R(a);XS(C)::S(D)
- B(c);XS(C)::S(D)
- P(d);XS(C)::S(D)
- S(g);P_SPINS(f)::QAR1(L)
- S(g);N_SPINQ(b),P_SPINS(f),S_CUTQ(b)::QAR1(L)
- Refutation
- S(g);P_SPINS(f)
- Try
- Actual
- S(C);
- Threat
- S(C)
- Vars
- K(h);N_SPINQ(b),P_SPINS(f),S_FLIGHT::S(C)
- S(f);N_GUARD,P_SPINS(g),XQ(L)::S(C),XP(d)
- S(g);P_SPINS(f),XS(C)::S(D)
- S(f);N_GUARD,N_SPINQ(b),P_SPINS(g)::QAR2(L)
- S(f);N_GUARD,P_SPINS(g)::S(C),XP(d)
- S(g);P_SPINS(f)::S(D)
- S(g);N_SPINQ(b),OGATE,P_SPINS(f)::QAR1(L)
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).