MESON Chess Problem Database
Problem Display
PID: 118223 (2R5/7p/PK1P4/2NkPP1r/5R1p/2Bn2rp/2p1P2Q/5B2 w - - 0 1)
Piatesi, Antonio
Canadian Chess Chat, 1981
#2
12 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Rd4#
- 1...Rg2
- 2.Rd4#
- 1...Re3
- 2.Rd4#
- 1...Rf3
- 2.Rd4#
- 1...Rgg5
- 2.Rd4#
- 1...Rg6
- 2.Rd4#
- 1...Rg7
- 2.Rd4#
- 1...Rg8
- 2.Rd4#
- 1...Sc1
- 2.e4#
- 1...Se1
- 2.e4#
- 1...Sb2
- 2.e4#
- 1...Sb4
- 2.e4#
- 1...Sxf4
- 2.e4#
- 1...Sxc5
- 2.Rxc5#
- 1...Sxe5
- 2.Rd4#
- 1...Rg1
- Tries
- 1.Kb5?
- threat
- 2.e4#
- 1...Sxc5
- 2.Rxc5#
- 1...Sxe5
- 2.Rd4#
- 1...Re3
- 2.Rd4#
- 1...Sf2!
- threat
- 1.Sxd3?
- threat
- 2.Sb4#
- 2.Rd4#
- 2.Rc5#
- 2.e4#
- 1...Rxd3
- 2.Rc5#
- 2.e4#
- 1...Re3
- 2.Sb4#
- 2.Rd4#
- 2.Rc5#
- 1...Rg4
- 2.Sb4#
- 2.Rc5#
- 2.e4#
- 1...Rxf5!
- threat
- 1.Se6?
- threat
- 2.Sc7#
- 2.e4#
- 1...Rxf5
- 2.Sc7#
- 1...Sxe5
- 2.Rd4#
- 1...Re3
- 2.Sc7#
- 2.Rd4#
- 1...Rg7
- 2.Rd4#
- 2.e4#
- 1...Sf2
- 2.Sc7#
- 2.Rc5#
- 1...Sc5
- 2.Sc7#
- 2.Rxc5#
- 1...Sxf4!
- threat
- 1.Sd7?
- threat
- 2.Sf6#
- 2.Rd4#
- 2.e4#
- 1...Sxf4
- 2.Sf6#
- 1...Sxe5
- 2.Rd4#
- 1...Re3
- 2.Sf6#
- 2.Rd4#
- 1...Rg4
- 2.Sf6#
- 2.e4#
- 1...Rg6
- 2.Rd4#
- 2.e4#
- 1...Rh6
- 2.Rd4#
- 2.e4#
- 1...Sf2
- 2.Sf6#
- 2.Rd4#
- 2.Rc5#
- 1...Sc5
- 2.Sf6#
- 2.Rd4#
- 2.Rxc5#
- 1...Rxf5!
- threat
- 1.Bg2+?
- 1...Rxg2
- 2.Rd4#
- 1...Rf3
- 2.Bxf3#
- 2.Rd4#
- 1...hxg2!
- 1...Rxg2
- 1.Re8?
- threat
- 2.Rd4#
- 1...Sxf4
- 2.e4#
- 1...Rg4!
- threat
- 1.Qxg3?
- threat
- 2.Rd4#
- 2.Qxd3#
- 2.Qf3#
- 2.Qg8#
- 1...Rxf5
- 2.Rd4#
- 2.Qxd3#
- 2.Qf3#
- 1...Sxf4
- 2.e4#
- 1...Sxc5
- 2.Rd4#
- 2.Rxc5#
- 1...Sxe5
- 2.Rd4#
- 1...c1S
- 2.Rd4#
- 2.Qf3#
- 2.Qg8#
- 1...Sf2
- 2.Rd4#
- 2.Qg8#
- 1...Rg5
- 2.Rd4#
- 2.Qxd3#
- 2.Qf3#
- 1...Rh6
- 2.Rd4#
- 2.Qxd3#
- 2.Qf3#
- 1...Sc1
- 2.Rd4#
- 2.Qf3#
- 2.Qg8#
- 2.e4#
- 1...Se1
- 2.Rd4#
- 2.Qg8#
- 2.e4#
- 1...Sb2
- 2.Rd4#
- 2.Qf3#
- 2.Qg8#
- 2.e4#
- 1...Sb4
- 2.Rd4#
- 2.Qf3#
- 2.Qg8#
- 2.e4#
- 1...hxg3!
- threat
- 1.Qh1+?
- 1...Rf3
- 2.Qxf3#
- 1...Rg2!
- 1...Rf3
- 1.Kb5?
- Keys
- 1.a7!
- threat
- 2.a8Q#
- 2.a8B#
- 1...Rxf5
- 2.a8Q#
- 2.a8B#
- 1...Sxf4
- 2.e4#
- 1...Sxc5
- 2.Rxc5#
- 1...Sxe5
- 2.Rd4#
- 1...c1Q
- 2.a8Q#
- 2.a8B#
- 1...c1S
- 2.a8Q#
- 2.a8B#
- 1...c1B
- 2.a8Q#
- 2.a8B#
- 1...c1R
- 2.a8Q#
- 2.a8B#
- 1...Sf2
- 2.a8Q#
- 2.a8B#
- 1...Rg1
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Rg2
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Re3
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Rf3
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Rg4
- 2.a8Q#
- 2.a8B#
- 1...Rgg5
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Rg6
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Rg7
- 2.Rd4#
- 1...Rg8
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Rhg5
- 2.a8Q#
- 2.a8B#
- 1...Rh6
- 2.a8Q#
- 2.a8B#
- 1...Sc1
- 2.e4#
- 2.a8Q#
- 2.a8B#
- 1...Se1
- 2.e4#
- 2.a8Q#
- 2.a8B#
- 1...Sb2
- 2.e4#
- 2.a8Q#
- 2.a8B#
- 1...Sb4
- 2.e4#
- 1...h6
- 2.a8Q#
- 2.a8B#
- threat
- 1.a7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- R(c);::R1(E)
- R(c);P_PINP(K)::R1(E)
- S(b);::P(B)
- S(b);XR(E)::P(B)
- S(b);OGATE,XS(F)::R1(L),XS(b)
- S(b);SBLOCK,XP(G)::R1(E)
- Tries
- Try
- K(J);P-FLIGHT
- Threat
- P(B)
- Vars
- S(b);OGATE,XS(F)::R1(L),XS(b)
- S(b);SBLOCK,XP(G)::R1(E)
- R(c);::R1(E)
- Refutation
- S(b);
- Try
- S(F);XS(b)
- Threat
- DUALS(4)
- Refutation
- R(g);XP(H)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(g);XP(H)::S(F)
- S(b);SBLOCK,XP(G)::R1(E)
- Refutation
- S(b);XR(E)
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- S(b);XR(E)::S(F)
- S(b);XP(G)::R1(E)
- Refutation
- R(g);XP(H)
- Try
- B(A);CHECK
- Vars
- R(c);XB(A)::R1(E)
- Refutation
- P(d);XB(A)
- Try
- R(L);
- Threat
- R1(E)
- Vars
- S(b);XR(E)::P(B)
- Refutation
- R(c);
- Try
- Q(C);XR(c)
- Threat
- DUALS(4)
- Vars
- S(b);XR(E)::P(B)
- S(b);XP(G)::R1(E)
- Refutation
- P(e);XQ(C)
- Try
- Q(C);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAB(C),XR(c)
- Refutation
- R(c);P_SPINR(c)
- Try
- Actual
- P(I);
- Threat
- P=Q
- Vars
- R(g);XP(H)::P=Q
- S(b);XR(E)::P(B)
- S(b);OGATE,XS(F)::R1(L),XS(b)
- S(b);SBLOCK,XP(G)::R1(E)
- P(a);::P=Q
- S(b);::P=Q
- R(c);::P=Q
- R(c);::R1(E)
- R(g);::P=Q
- R(g);P_PINP(K)::P=Q
- S(b);::P(B)
- P(h);::P=Q
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).