MESON Chess Problem Database
Problem Display
PID: 95742 (8/3pBn2/2pPkP2/1pR1Pp1B/2p5/3p1N2/Q2Kn3/8 w - - 0 1)
Kardos, Tivadar
L'Italia Scacchistica, 1947
#2
9 + 9
| 6490 | yacpdb | 2009 |
| 5454 | Near Snap | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sg3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sxe5
- 2.Sg5#
- 2.Rxe5#
- 1...Sg5
- 2.Sxg5#
- 1...Sxd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...b4
- 2.Qxc4#
- 1...f4
- 2.Bg4#
- 1...Sc1
- Tries
- 1.Ke1?
- 1...Sxe5
- 2.Sg5#
- 2.Rxe5#
- 1...Sxd6
- 2.Sg5#
- 1...f4
- 2.Bg4#
- 1...Sc1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sg3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sg5
- 2.Sxg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...b4
- 2.Qxc4#
- 1...d2+!
- 1...Sxe5
- 1.Bg4?
- 1...Sxe5
- 2.Sg5#
- 1...Sxd6
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...Sc1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sg3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...b4
- 2.Qxc4#
- 1...fxg4!
- 1...Sxe5
- 1.Bg6?
- 1...Sxe5
- 2.Sg5#
- 2.Rxe5#
- 1...Sxd6
- 2.Sg5#
- 1...Sc1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sg3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sg5
- 2.Sxg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...b4
- 2.Qxc4#
- 1...f4!
- 1...Sxe5
- 1.Bd8?
- 1...Sxd6
- 2.Sg5#
- 1...Sxd8
- 2.Sg5#
- 1...f4
- 2.Bg4#
- 1...Sc1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sg3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sg5
- 2.Sxg5#
- 1...Sh6
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...b4
- 2.Qxc4#
- 1...Sxe5!
- 1...Sxd6
- 1.Bf8?
- 1...Sxd6
- 2.Sg5#
- 1...f4
- 2.Bg4#
- 1...Sc1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sg3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sg5
- 2.Sxg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...b4
- 2.Qxc4#
- 1...Sxe5!
- 1...Sxd6
- 1.Rxb5?
- threat
- 2.Qxc4#
- 1...Sxe5
- 2.Sg5#
- 2.Rxe5#
- 1...Sxd6
- 2.Sg5#
- 1...f4
- 2.Bg4#
- 1...Sc3
- 2.Sd4#
- 1...Sf4
- 2.Sd4#
- 1...cxb5!
- threat
- 1.Qb3?
- 1...Sxe5
- 2.Sg5#
- 2.Rxe5#
- 1...Sxd6
- 2.Sg5#
- 1...f4
- 2.Bg4#
- 1...Sc1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sg3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sg5
- 2.Sxg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...b4
- 2.Qxc4#
- 1...cxb3!
- 1...Sxe5
- 1.Qa6?
- 1...Sxe5
- 2.Sg5#
- 2.Rxe5#
- 1...Sxd6
- 2.Sg5#
- 1...f4
- 2.Bg4#
- 1...b4
- 2.Qxc4#
- 1...Sc1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sg3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sg5
- 2.Sxg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...c3+!
- 1...Sxe5
- 1.Ke1?
- Keys
- 1.Rxc4!
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rc5#
- 2.Rxc6#
- 1...Kd5
- 2.Bxf7#
- 1...Sxe5
- 2.Re4#
- 1...Sxd6
- 2.Rxc6#
- 1...bxc4
- 2.Qxc4#
- 1...f4
- 2.Rxf4#
- 1...Sc1
- 2.Rxc1#
- 1...Sc3
- 2.Rxc3#
- 1...Sd4
- 2.Rxd4#
- 1...Sf4
- 2.Rxf4#
- 1...b4
- 2.Rxb4#
- 1...c5
- 2.Rxc5#
- threat
- 1.Rxc4!
This anticipates 110797(1949)
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 7
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD,XP(G)::S(C)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::QAB(A),XP(c)
- P(e);OGATEB::B(F)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- S(i);N_GUARD,XP(G)::S(C)
- P(e);OGATEB::B(F)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::QAB(A),XP(c)
- Refutation
- P(b);CHECK
- Try
- B(F);
- Vars
- S(i);N_GUARD,XP(E)::S(C)
- S(i);N_GUARD,XP(G)::S(C)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::QAB(A),XP(c)
- Refutation
- P(e);XB(F)
- Try
- B(F);
- Vars
- S(i);N_GUARD,XP(G)::S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::QAB(A),XP(c)
- Refutation
- P(e);
- Try
- B(I);
- Vars
- S(i);N_GUARD,XP(G)::S(C)
- S(i);N_GUARD,XB(I)::S(C)
- P(e);OGATEB::B(F)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::QAB(A),XP(c)
- Refutation
- S(i);XP(E)
- Try
- B(I);
- Vars
- S(i);N_GUARD,XP(G)::S(C)
- P(e);OGATEB::B(F)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::QAB(A),XP(c)
- Refutation
- S(i);XP(E)
- Try
- R(D);XP(d)
- Threat
- QAB(A),XP(c)
- Vars
- S(i);N_GUARD,XP(G)::S(C)
- P(e);OGATEB::B(F)
- S(a);N_GUARD::S(C)
- Refutation
- P(f);XR(D)
- Try
- Q(A);
- Vars
- S(i);N_GUARD,XP(G)::S(C)
- P(e);OGATEB::B(F)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::QAB(A),XP(c)
- Refutation
- P(c);N_SPINP(c),XQ(A)
- Try
- Q(A);N_PINP(c)
- Vars
- S(i);N_GUARD,XP(G)::S(C)
- P(e);OGATEB::B(F)
- P(d);OGATE::QAB(A),XP(c)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- Refutation
- P(c);CHECK
- Try
- Actual
- R(D);XP(c)
- Threat
- DUALS(12)
- Vars
- K(g);S_FLIGHT::B(F),XS(i)
- S(i);XP(E)::QAB(A)+R(D)
- S(i);XP(G)::QAB(A)+R(D),XP(f)
- P(d);OGATE,P_SPINP(d),XR(D)::QAB(A),XP(d)
- P(e);::QAB(A)+R(D),XP(e)
- S(a);::QAB(A)+R(D),XS(a)
- P(d);::QAB(A)+R(D),XP(d)
- P(f);::QAB(A)+R(D),XP(f)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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