MESON Chess Problem Database
Problem Display
PID: 92077 (3r4/2N4p/rn3B1p/2p5/4kN2/bqn4Q/3RpR1K/7b w - - 0 1)
Wielgos, Oskar
Schach-Echo, 1964
#2
7 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Qe6#
- 1...Qc2
- 2.Qe6#
- 1...Qa4
- 2.Qe6#
- 1...Qe6
- 2.Qxe6#
- 1...Qb1
- 2.Qe6#
- 1...Qb2
- 2.Qe6#
- 1...Qb4
- 2.Qe6#
- 1...Qb5
- 2.Qe6#
- 1...Rd3
- 2.Qxd3#
- 1...Ra8
- 2.Qd3#
- 1...Rb8
- 2.Qd3#
- 1...Rc8
- 2.Qd3#
- 1...Re8
- 2.Qd3#
- 1...Rf8
- 2.Qd3#
- 1...Rg8
- 2.Qd3#
- 1...Rh8
- 2.Qd3#
- 1...Scd5
- 2.Qe6#
- 1...Sbd5
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...c4
- 2.Qe6#
- 1...Qd1
- Tries
- 1.Sxe2?
- threat
- 2.Rf4#
- 1...Bf3
- 2.Qxf3#
- 1...Scd5
- 2.Qe6#
- 1...Sbd5
- 2.Qd3#
- 1...Sxe2!
- threat
- 1.Sg2?
- threat
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qe3#
- 2.Qf3#
- 2.Qh4#
- 1...Rxd2
- 2.Rf4#
- 2.Qf5#
- 2.Qe3#
- 2.Qf3#
- 1...e1Q
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qf3#
- 2.Qh4#
- 1...e1S
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qe3#
- 2.Qh4#
- 1...e1R
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qf3#
- 2.Qh4#
- 1...Qd5
- 2.Rf4#
- 2.Qg4#
- 2.Qe3#
- 2.Qf3#
- 2.Qh4#
- 1...Qe6
- 2.Rf4#
- 2.Qxe6#
- 2.Qe3#
- 2.Qf3#
- 1...Qg8
- 2.Rf4#
- 2.Qf5#
- 2.Qe3#
- 2.Qf3#
- 1...Rd3
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qxd3#
- 2.Qh4#
- 1...Rd5
- 2.Rf4#
- 2.Qg4#
- 2.Qe3#
- 2.Qf3#
- 2.Qh4#
- 1...Rg8
- 2.Rf4#
- 2.Qf5#
- 2.Qd3#
- 2.Qe3#
- 2.Qf3#
- 1...Sb1
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qh4#
- 1...Sd1
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qh4#
- 1...Sa2
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qh4#
- 1...Sca4
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qh4#
- 1...Sb5
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qh4#
- 1...Scd5
- 2.Qf5#
- 2.Qe6#
- 1...Sc4
- 2.Rf4#
- 2.Qg4#
- 2.Qf5#
- 2.Qf3#
- 2.Qh4#
- 1...Sbd5
- 2.Qf5#
- 2.Qd3#
- 2.Qf3#
- 1...h5
- 2.Rf4#
- 2.Qf5#
- 2.Qe3#
- 2.Qf3#
- 2.Qh4#
- 1...Bxg2!
- threat
- 1.Sd3?
- threat
- 2.Rf4#
- 1...Rxd3
- 2.Qxd3#
- 1...Bf3
- 2.Qxf3#
- 1...Scd5
- 2.Qe6#
- 1...Sbd5!
- threat
- 1.Sfe6?
- threat
- 2.Rf4#
- 1...Qxe6
- 2.Qxe6#
- 1...Bf3
- 2.Qxf3#
- 1...Sbd5
- 2.Qd3#
- 1...Scd5!
- threat
- 1.Sg6?
- threat
- 2.Rf4#
- 1...Bf3
- 2.Qxf3#
- 1...Scd5
- 2.Qe6#
- 1...Sbd5
- 2.Qd3#
- 1...hxg6!
- threat
- 1.Rd4+?
- 1...cxd4
- 2.Qd3#
- 1...Rxd4!
- 1...cxd4
- 1.Sxe2?
- Keys
- 1.Sh5!
- threat
- 2.Rf4#
- 1...Bf3
- 2.Qxf3#
- 1...Scd5
- 2.Qe6#
- 1...Sbd5
- 2.Qd3#
- threat
- 1.Sh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 18
- Sets
- Q(d);N_GUARD::QAR2(D)
- Q(d);N_GUARD::QAR2(D),XQ(d)
- R(l);N_GUARD::QAB1(D),XR(l)
- R(l);N_GUARD::QAB1(D)
- S(e);S_CUTQ(d)::QAR2(D)
- S(i);S_CUTR(l)::QAB1(D)
- P(g);S_CUTQ(d)::QAR2(D)
- Tries
- Try
- S(E);XP(b)
- Threat
- R1(B)
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- S(e);S_CUTQ(d)::QAR2(D)
- S(i);S_CUTR(l)::QAB1(D)
- Refutation
- S(e);XS(E)
- Try
- S(E);
- Threat
- DUALS(6)
- Refutation
- B(a);XS(E)
- Try
- S(E);
- Threat
- R1(B)
- Vars
- R(l);OGATE,XS(E)::QAB1(D),XR(l)
- B(a);N_GUARD::QAB1(D),XB(a)
- S(e);S_CUTQ(d)::QAR2(D)
- Refutation
- S(i);
- Try
- S(E);
- Threat
- R1(B)
- Vars
- Q(d);OGATE,XS(E)::QAR2(D),XQ(d)
- B(a);N_GUARD::QAB1(D),XB(a)
- S(i);S_CUTR(l)::QAB1(D)
- Refutation
- S(e);
- Try
- S(E);
- Threat
- R1(B)
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- S(e);S_CUTQ(d)::QAR2(D)
- S(i);S_CUTR(l)::QAB1(D)
- Refutation
- P(k);XS(E)
- Try
- R(A);CHECK
- Vars
- P(g);XR(A)::QAB1(D)
- Refutation
- R(l);XR(A)
- Try
- Actual
- S(E);
- Threat
- R1(B)
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- S(e);S_CUTQ(d)::QAR2(D)
- S(i);S_CUTR(l)::QAB1(D)
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).