MESON Chess Problem Database
Problem Display
PID: 262831 (K7/2BB1p2/8/p1Nk1r2/2R5/1b2P3/2p4p/4nQ1q w - - 0 1)
Zalewski, Mieczyzlaw
Szachy, 1976
#2
7 + 9
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.e4#
- 1...Rf3
- 2.e4#
- 1...Rg5
- 2.Qxf7#
- 1...Rh5
- 2.Qxf7#
- 1...Bxc4
- 2.Qxf5#
- 1...Sg2
- 2.Qd3#
- 2.e4#
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.e4#
- 1...Qg1
- Tries
- 1.Sxb3?
- threat
- 2.Rd4#
- 1...Qe4
- 2.Rc5#
- 1...Sf3
- 2.e4#
- 1...Rf4!
- threat
- 1.Sa4?
- threat
- 2.Sc3#
- 2.Sb6#
- 2.Rd4#
- 1...Qxf1
- 2.Sb6#
- 2.Rd4#
- 1...Rxf1
- 2.Sb6#
- 2.Rd4#
- 1...Bxc4
- 2.Qxf5#
- 1...Sd3
- 2.Sb6#
- 2.Rd4#
- 2.Qxd3#
- 1...c1Q
- 2.Sb6#
- 2.Rd4#
- 1...c1R
- 2.Sb6#
- 2.Rd4#
- 1...Qe4
- 2.Sc3#
- 2.Sb6#
- 2.Rc5#
- 1...Rf4
- 2.Sc3#
- 2.Sb6#
- 1...Rf6
- 2.Sc3#
- 2.Rd4#
- 1...Sf3
- 2.Sc3#
- 2.Sb6#
- 2.e4#
- 1...Bxa4!
- threat
- 1.Se4?
- threat
- 2.Sc3#
- 2.Rd4#
- 1...Qxf1
- 2.Rd4#
- 1...Rxf1
- 2.Rd4#
- 1...Bxc4
- 2.Qxf5#
- 1...Sd3
- 2.Rd4#
- 2.Qxd3#
- 1...c1Q
- 2.Rd4#
- 1...c1R
- 2.Rd4#
- 1...Sf3
- 2.Sc3#
- 1...Qxe4!
- threat
- 1.Sa6?
- threat
- 2.Rd4#
- 1...Bxc4
- 2.Qxf5#
- 1...Qe4
- 2.Rc5#
- 1...Sf3
- 2.e4#
- 1...Rf4!
- threat
- 1.Sb7?
- threat
- 2.Rd4#
- 1...Bxc4
- 2.Qxf5#
- 1...Qe4
- 2.Rc5#
- 1...Sf3
- 2.e4#
- 1...Rf4!
- threat
- 1.Qf4?
- threat
- 2.Qd4#
- 1...Qe4
- 2.Qxe4#
- 1...Sf3
- 2.Qe4#
- 1...Rxf4!
- threat
- 1.Sxb3?
- Keys
- 1.Se6!
- threat
- 2.Rd4#
- 1...Bxc4
- 2.Qxf5#
- 1...fxe6
- 2.Bc6#
- 1...Rf4
- 2.Sxf4#
- 1...Qe4
- 2.Rc5#
- 1...Sf3
- 2.e4#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- Q(b);N_GUARD::P(B)
- R(h);S_CUTQ(b)::P(B)
- R(h);OGATE::QAB(A),XP(i)
- B(e);SBLOCK,XR(C)::QAR2(A),XR(h)
- S(a);N_GUARD::QAR2(A),XS(a)
- S(a);S_CUTQ(b)::P(B)
- Tries
- Try
- S(D);XB(e)
- Threat
- R1(C)
- Vars
- Q(b);SBLOCK::R1(C)
- S(a);S_CUTQ(b)::P(B)
- Refutation
- R(h);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- B(e);SBLOCK,XR(C)::QAR2(A),XR(h)
- Refutation
- B(e);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(b);XQ(A)::R1(C)
- R(h);XQ(A)::R1(C)
- B(e);SBLOCK,XR(C)::QAR2(A),XR(h)
- P(c);::R1(C)
- S(a);::S(D)
- Refutation
- Q(b);XS(D)
- Try
- S(D);
- Threat
- R1(C)
- Vars
- B(e);SBLOCK,XR(C)::QAR2(A),XR(h)
- Q(b);SBLOCK::R1(C)
- S(a);S_CUTQ(b)::P(B)
- Refutation
- R(h);
- Try
- S(D);
- Threat
- R1(C)
- Vars
- B(e);SBLOCK,XR(C)::QAR2(A),XR(h)
- Q(b);SBLOCK::R1(C)
- S(a);S_CUTQ(b)::P(B)
- Refutation
- R(h);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- Q(b);N_GUARD::QAB1(A),XQ(b)
- S(a);S_CUTQ(b)::QAB1(A)
- Refutation
- R(h);XQ(A)
- Try
- Actual
- S(D);
- Threat
- R1(C)
- Vars
- B(e);SBLOCK,XR(C)::QAR2(A),XR(h)
- P(i);SBLOCK,XS(D)::B(F)
- R(h);N_GUARD::S(D),XR(h)
- Q(b);SBLOCK::R1(C)
- S(a);S_CUTQ(b)::P(B)
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).