MESON Chess Problem Database
Problem Display
PID: 261378 (2KR4/p7/1R6/1pNNp1r1/2kP4/2p1PQ2/2P1p2r/7B w - - 0 1)
Machler, Emil
Neue Zurcher Zeitung, 1992
#2
10 + 8
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rxh1
- 2.Qxe2#
- 1...Rh3
- 2.Qxe2#
- 1...Rh4
- 2.Qxe2#
- 1...Rhh5
- 2.Qxe2#
- 1...Rh6
- 2.Qxe2#
- 1...Rh7
- 2.Qxe2#
- 1...Rh8
- 2.Qxe2#
- 1...b4
- 2.Rxb4#
- 1...Rxh1
- Tries
- 1.Sb3?
- threat
- 2.Sa5#
- 2.Rc6#
- 1...exd4
- 2.Rc6#
- 1...Rh6
- 2.Sa5#
- 2.Qxe2#
- 1...Rg6
- 2.Sa5#
- 1...b4
- 2.Sa5#
- 2.Rxb4#
- 1...a5
- 2.Sxa5#
- 2.Rc6#
- 1...axb6!
- threat
- 1.Sd3?
- threat
- 2.Rc6#
- 1...axb6
- 2.Sxb6#
- 1...Rg6
- 2.Sxe5#
- 1...b4
- 2.Rxb4#
- 1...Rh6!
- threat
- 1.Sa4?
- threat
- 2.Rc6#
- 1...bxa4
- 2.Rb4#
- 1...axb6
- 2.Saxb6#
- 1...Rh6
- 2.Qxe2#
- 1...b4
- 2.Rxb4#
- 1...Rg6!
- threat
- 1.Se4?
- threat
- 2.Sd6#
- 2.Rc6#
- 1...exd4
- 2.Rc6#
- 1...axb6
- 2.Sd6#
- 1...Rh6
- 2.Qxe2#
- 1...b4
- 2.Sd6#
- 2.Rxb4#
- 1...Rg6!
- threat
- 1.Sa6?
- threat
- 2.Rc6#
- 1...axb6
- 2.Sxb6#
- 1...Rh6
- 2.Qxe2#
- 1...b4
- 2.Rxb4#
- 1...Rg6!
- threat
- 1.Se6?
- threat
- 2.Rc6#
- 1...b4
- 2.Rxb4#
- 1...axb6!
- threat
- 1.Sd7?
- threat
- 2.Rc6#
- 1...axb6
- 2.S7xb6#
- 1...Rg6
- 2.Sxe5#
- 1...Rh6
- 2.Qxe2#
- 1...b4
- 2.Rxb4#
- 1...e4!
- threat
- 1.Rc6?
- threat
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Se4#
- 2.Sa6#
- 2.Se6#
- 2.Sb7#
- 2.Sd7#
- 1...Rg6
- 2.Se6#
- 1...Rh6
- 2.Se6#
- 2.Qxe2#
- 1...e4
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sxe4#
- 2.Sa6#
- 2.Se6#
- 2.Sb7#
- 1...a6
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Se4#
- 2.Sxa6#
- 2.Se6#
- 2.Sb7#
- 2.Sd7#
- 1...b4!
- threat
- 1.Qe4?
- threat
- 2.Qd3#
- 1...exd4
- 2.Qxd4#
- 1...e1S!
- threat
- 1.Sb3?
- Keys
- 1.Sb7!
- threat
- 2.Sa5#
- 2.Sd6#
- 2.Rc6#
- 1...exd4
- 2.Rc6#
- 1...axb6
- 2.Sd6#
- 1...Rg6
- 2.Sa5#
- 1...Rh6
- 2.Sa5#
- 2.Qxe2#
- 1...b4
- 2.Sa5#
- 2.Sd6#
- 2.Rxb4#
- 1...e4
- 2.Sa5#
- 2.Rc6#
- 1...a5
- 2.Sxa5#
- 2.Sd6#
- 2.Rc6#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- R(b);N_GUARD,XB(A)::QAB(D),XP(a)
- R(b);N_GUARD::QAB(D),XP(a)
- R(b);N_GUARD,P_PINR(J)::QAB(D),XP(a)
- P(e);OGATE::R1(H),XP(e)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- P(f);XP(E)::R(H)
- R(g);::S(F)
- Refutation
- P(h);XR(H)
- Try
- S(F);
- Threat
- R(H)
- Vars
- P(h);XR(H)::S(G),XP(h)
- R(g);N_GUARD::S(F),XP(f)
- P(e);OGATE::R1(H),XP(e)
- Refutation
- R(b);
- Try
- S(F);
- Threat
- R(H)
- Vars
- P(e);OGATE,XS(F)::R1(H)
- P(h);XR(H)::S(F),XP(h)
- R(b);N_GUARD::QAB(D),XP(a)
- P(e);OGATE::R1(H),XP(e)
- Refutation
- R(g);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- P(f);XP(E)::R(H)
- P(h);XR(H)::S(F)
- R(b);N_GUARD::QAB(D),XP(a)
- Refutation
- R(g);
- Try
- S(F);
- Threat
- R(H)
- Vars
- P(h);XR(H)::S(G),XP(h)
- R(b);N_GUARD::QAB(D),XP(a)
- P(e);OGATE::R1(H),XP(e)
- Refutation
- R(g);
- Try
- S(F);
- Threat
- R(H)
- Vars
- P(e);OGATE::R1(H),XP(e)
- Refutation
- P(h);XR(H)
- Try
- S(F);
- Threat
- R(H)
- Vars
- P(h);XR(H)::S(F),XP(h)
- R(g);N_GUARD::S(F),XP(f)
- R(b);N_GUARD::QAB(D),XP(a)
- P(e);OGATE::R1(H),XP(e)
- Refutation
- P(f);
- Try
- R(H);
- Threat
- DUALS(8)
- Vars
- R(g);::R(H)+S(F)
- Refutation
- P(e);
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- P(f);OGATE,P_SPINP(f),XP(E)::QAR1(D),XP(f)
- Refutation
- P(a);
- Try
- Actual
- S(F);
- Threat
- DUALS(3)
- Vars
- P(f);XP(E)::R(H)
- P(h);XR(H)::S(F)
- R(g);::S(F)
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).