MESON Chess Problem Database
Problem Display
PID: 12395 (1BR1R3/1p1K4/1P3pB1/3p2n1/2pkPP1N/2p1p1n1/2Pp4/7Q w - - 0 1)
Zappas, Byron
1st Prize, The Problemist, 1978/I
#2
11 + 10
| 102 | Probleemblad | 1979 |
| 3750 | FIDE Album (1977-1979) | 1984 |
| 5406 | Selected Chess Compositions by Greek Composers | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Sf1
- 2.Sf5#
- 1...Sxh1
- 2.Sf5#
- 1...Se2
- 2.Sf5#
- 1...S3xe4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sh5
- 2.Sf5#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...S5xe4
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...e2
- 2.Qg1#
- 1...f5
- 2.Be5#
- 1...Sf1
- Tries
- 1.Ke7?
- 1...Sf5+
- 2.Sxf5#
- 1...S3xe4
- 2.Sf5#
- 1...S5xe4
- 2.Sf3#
- 1...dxe4
- 2.Red8#
- 1...e2
- 2.Qg1#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Sf1
- 2.Sf5#
- 1...Se2
- 2.Sf5#
- 1...Sh5
- 2.Sf5#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...f5
- 2.Be5#
- 1...Sxh1!
- 1...Sf5+
- 1.Bf7?
- 1...Sxh1
- 2.Sf5#
- 1...S3xe4
- 2.Sf5#
- 1...S5xe4
- 2.Sf3#
- 1...Sxf7
- 2.Sf3#
- 1...dxe4
- 2.Rxc4#
- 1...e2
- 2.Qg1#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Sf1
- 2.Sf5#
- 1...Se2
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sh5
- 2.Sf5#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...f5
- 2.Be5#
- 1...Se6!
- 1...Sxh1
- 1.Bh7?
- 1...Sxh1
- 2.Sf5#
- 1...S3xe4
- 2.Sf5#
- 1...S5xe4
- 2.Sf3#
- 1...Sxh7
- 2.Sf3#
- 1...e2
- 2.Qg1#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Se6
- 2.Sf3#
- 1...Sf1
- 2.Sf5#
- 1...Se2
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sh5
- 2.Sf5#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...f5
- 2.Be5#
- 1...dxe4!
- 1...Sxh1
- 1.Bd6?
- threat
- 2.Bc5#
- 1...S3xe4
- 2.Sf5#
- 1...S5xe4
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...dxe4!
- threat
- 1.Re5?
- threat
- 2.Rxd5#
- 1...S3xe4
- 2.Sf5#
- 1...S5xe4
- 2.Sf3#
- 1...fxe5
- 2.Bxe5#
- 1...e2
- 2.Qg1#
- 1...dxe4!
- threat
- 1.Re7?
- 1...Sxh1
- 2.Sf5#
- 1...S3xe4
- 2.Sf5#
- 1...S5xe4
- 2.Sf3#
- 1...e2
- 2.Qg1#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Se6
- 2.Sf3#
- 1...Sf1
- 2.Sf5#
- 1...Se2
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sh5
- 2.Sf5#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...f5
- 2.Be5#
- 1...dxe4!
- 1...Sxh1
- 1.Red8?
- 1...S3xe4
- 2.Sf5#
- 1...S5xe4
- 2.Sf3#
- 1...dxe4
- 2.Ke7#
- 2.Ke8#
- 1...e2
- 2.Qg1#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Se6
- 2.Sf3#
- 1...Sf1
- 2.Sf5#
- 1...Se2
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sh5
- 2.Sf5#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...f5
- 2.Be5#
- 1...Sxh1!
- 1...S3xe4
- 1.Qf1?
- 1...Sxf1
- 2.Sf5#
- 1...S3xe4
- 2.Sf5#
- 1...S5xe4
- 2.Sf3#
- 1...dxe4
- 2.Qxc4#
- 1...e2
- 2.Qg1#
- 2.Qf2#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Sh1
- 2.Sf5#
- 1...Se2
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sh5
- 2.Sf5#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...f5!
- 1...Sxf1
- 1.fxg5?
- threat
- 2.Sf3#
- 1...e2
- 2.Qg1#
- 1...d1Q
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...dxe4!
- threat
- 1.Ke7?
- Keys
- 1.Re6!
- 1...Sxh1
- 2.Sf5#
- 1...S3xe4
- 2.Sf5#
- 1...S5xe4
- 2.Sf3#
- 1...Sxe6
- 2.Sf3#
- 1...dxe4
- 2.Rd6#
- 1...e2
- 2.Qg1#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Sf1
- 2.Sf5#
- 1...Se2
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sh5
- 2.Sf5#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sf7
- 2.Sf3#
- 1...Sh7
- 2.Sf3#
- 1...f5
- 2.Be5#
- 1...Sxh1
- 1.Re6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::S(E)
- S(d);N_GUARD,XQ(A)::S(E)
- S(d);N_GUARD,XP(C)::S(E)
- S(d);N_GUARD::S(E),XS(d)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- P(c);OGATEB::QAB(A)
- P(i);N_GUARD::B(I)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- S(d);CHECK,N_GUARD::S(E),XS(d)
- S(d);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- P(g);OGATEB,XP(C)::R(K)
- P(c);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- S(d);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- P(i);N_GUARD::B(I)
- Refutation
- S(d);XQ(A)
- Try
- B(G);
- Vars
- S(d);N_GUARD,XQ(A)::S(E)
- S(d);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XB(G)::S(E)
- P(g);N_GUARD,XP(C)::R1(J),XP(e)
- P(c);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- P(i);N_GUARD::B(I)
- Refutation
- S(h);
- Try
- B(G);
- Vars
- S(d);N_GUARD,XQ(A)::S(E)
- S(d);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XB(G)::S(E)
- P(c);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- S(h);N_GUARD::S(E)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- S(h);N_GUARD::S(E),XS(h)
- P(i);N_GUARD::B(I)
- Refutation
- P(g);XP(C)
- Try
- B(I);
- Threat
- B(I)
- Vars
- S(d);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD::S(E)
- Refutation
- P(g);XP(C)
- Try
- R(K);
- Threat
- R1(K),XP(g)
- Vars
- S(d);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- P(i);OGATE,XR(K)::B(I),XP(i)
- P(c);OGATEB::QAB(A)
- Refutation
- P(g);XP(C)
- Try
- R(K);
- Vars
- S(d);N_GUARD,XQ(A)::S(E)
- S(d);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- P(c);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- S(h);N_GUARD::S(E)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- S(h);N_GUARD::S(E),XS(h)
- P(i);N_GUARD::B(I)
- Refutation
- P(g);XP(C)
- Try
- R(K);
- Vars
- S(d);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- P(c);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- S(h);N_GUARD::S(E)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- S(h);N_GUARD::S(E),XS(h)
- P(i);N_GUARD::B(I)
- Refutation
- S(d);XQ(A)
- Try
- Q(A);
- Vars
- S(d);N_GUARD,XQ(A)::S(E)
- S(d);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- P(g);N_GUARD,XP(C)::QAR1(A),XP(e)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- Refutation
- P(i);
- Try
- P(D);XS(h)
- Threat
- S(E)
- Vars
- P(c);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XB(a)
- Refutation
- P(g);XP(C)
- Try
- Actual
- R(K);
- Vars
- S(d);N_GUARD,XQ(A)::S(E)
- S(d);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XP(C)::S(E)
- S(h);N_GUARD,XR(K)::S(E)
- P(g);OGATEB,XP(C)::R(K)
- P(c);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- P(i);N_GUARD::B(I)
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).