MESON Chess Problem Database
Problem Display
PID: 261271 (1bbR1R1q/5Q2/3N1r1p/r6p/5p1K/2N2k2/3P1p2/5B1n w - - 0 1)
Haralovic, Mato
Neue Zurcher Zeitung, 1981
#2
8 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qd5#
- 1...Ra2
- 2.Qd5#
- 1...Ra3
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Ra6
- 2.Qd5#
- 1...Ra7
- 2.Qd5#
- 1...Ra8
- 2.Qd5#
- 1...Rxd6
- 2.Qxf4#
- 1...Re6
- 2.Qxf4#
- 1...Rg6
- 2.Qxf4#
- 1...Ra1
- Tries
- 1.Sf5?
- threat
- 2.Sd4#
- 2.Rd3#
- 2.Qxh5#
- 1...Raxf5
- 2.Rd3#
- 1...Rfxf5
- 2.Rd3#
- 1...Rxf7
- 2.Rd3#
- 1...Qg7
- 2.Sd4#
- 2.Rd3#
- 1...Qg8
- 2.Sd4#
- 2.Rd3#
- 1...Ra4
- 2.Rd3#
- 2.Qxh5#
- 1...Rd5
- 2.Qxd5#
- 2.Qxh5#
- 1...Re5
- 2.Sd4#
- 2.Qxh5#
- 1...Rfa6
- 2.Rd3#
- 2.Qxh5#
- 1...Rb6
- 2.Rd3#
- 2.Qxh5#
- 1...Rc6
- 2.Rd3#
- 2.Qxh5#
- 1...Rd6
- 2.Qxh5#
- 1...Re6
- 2.Qxh5#
- 1...Rg6
- 2.Rd3#
- 1...Be5
- 2.Rd3#
- 2.Qxh5#
- 1...Bd6
- 2.Sd4#
- 2.Qxh5#
- 1...Ba7
- 2.Qxh5#
- 1...Ba6
- 2.Sd4#
- 2.Qxh5#
- 1...Bd7
- 2.Sd4#
- 2.Qxh5#
- 1...Sg3
- 2.Sd4#
- 2.Rd3#
- 1...Bxf5!
- threat
- 1.Qb3?
- threat
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sce4#
- 2.Scb5#
- 2.Sd5#
- 2.Qd1#
- 1...Rxd6
- 2.Qd1#
- 1...Rxf8
- 2.Qd1#
- 1...Bxd6
- 2.Qd1#
- 1...Qh7
- 2.Sce4#
- 2.Qd1#
- 1...Qg8
- 2.Sd5#
- 2.Qd1#
- 1...Ra1
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sce4#
- 2.Scb5#
- 2.Sd5#
- 2.Qd5#
- 1...Ra2
- 2.Sb1#
- 2.Sd1#
- 2.Sxa2#
- 2.Se2#
- 2.Sa4#
- 2.Sce4#
- 2.Scb5#
- 2.Sd5#
- 2.Qd1#
- 2.Qd5#
- 1...Ra3
- 2.Qd1#
- 2.Qd5#
- 1...Ra4
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se2#
- 2.Sxa4#
- 2.Sce4#
- 2.Scb5#
- 2.Sd5#
- 2.Qd1#
- 1...Rb5
- 2.Scxb5#
- 2.Qd1#
- 1...Rc5
- 2.Qd1#
- 1...Rd5
- 2.Sxd5#
- 2.Qd1#
- 2.Qxd5#
- 1...Re5
- 2.Sce4#
- 1...Rff5
- 2.Qd1#
- 1...Rg6
- 2.Qd1#
- 1...Rf7
- 2.Qd1#
- 1...Ba7
- 2.Qd1#
- 1...Bf5
- 2.Sce4#
- 2.Qd1#
- 1...Ba6
- 2.Scb5#
- 1...Be6
- 2.Sd5#
- 2.Qd1#
- 1...Sg3
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sce4#
- 2.Scb5#
- 2.Sd5#
- 1...Re6!
- threat
- 1.Qc4?
- threat
- 2.Qe2#
- 2.Qd3#
- 2.Qe4#
- 1...Rxd6
- 2.Rxf4#
- 2.Qe2#
- 2.Qe4#
- 2.Qxf4#
- 1...Qh7
- 2.Qe2#
- 1...Ra4
- 2.Qe2#
- 2.Qd3#
- 1...Rd5
- 2.Qe2#
- 2.Qxd5#
- 2.Qe4#
- 1...Re6
- 2.Rxf4#
- 2.Qxf4#
- 1...Ba7
- 2.Qe2#
- 2.Qe4#
- 1...Bf5
- 2.Qe2#
- 1...Ba6
- 2.Qe4#
- 1...Bb7
- 2.Qe2#
- 2.Qd3#
- 1...Sg3
- 2.Qd3#
- 1...Re5!
- threat
- 1.Qxh5+?
- 1...Bg4
- 2.Qxg4#
- 1...Rxh5+!
- 1...Bg4
- 1.Qg6?
- threat
- 2.Be2#
- 2.Bg2#
- 2.Qd3#
- 2.Qe4#
- 2.Qg2#
- 1...Rxd6
- 2.Be2#
- 2.Bg2#
- 2.Qe4#
- 2.Qg2#
- 1...Re5
- 2.Bg2#
- 2.Qg2#
- 1...Qg7
- 2.Be2#
- 2.Bg2#
- 2.Qd3#
- 2.Qe4#
- 1...Qh7
- 2.Be2#
- 2.Bg2#
- 2.Qg2#
- 1...Qg8
- 2.Be2#
- 2.Bg2#
- 2.Qd3#
- 2.Qe4#
- 1...Ra4
- 2.Be2#
- 2.Bg2#
- 2.Qd3#
- 2.Qg2#
- 1...Rd5
- 2.Be2#
- 2.Bg2#
- 2.Qe4#
- 2.Qg2#
- 1...Raf5
- 2.Be2#
- 2.Bg2#
- 2.Qg2#
- 1...Rg5
- 2.Qd3#
- 2.Qe4#
- 1...Rff5
- 2.Be2#
- 2.Bg2#
- 2.Qg2#
- 1...Re6
- 2.Bg2#
- 2.Qg2#
- 1...Ba7
- 2.Be2#
- 2.Bg2#
- 2.Qe4#
- 2.Qg2#
- 1...Bh3
- 2.Be2#
- 2.Qd3#
- 2.Qe4#
- 1...Bg4
- 2.Qd3#
- 2.Qe4#
- 1...Bf5
- 2.Be2#
- 2.Bg2#
- 2.Qg2#
- 1...Ba6
- 2.Bg2#
- 2.Qe4#
- 2.Qg2#
- 1...Bb7
- 2.Be2#
- 2.Bg2#
- 2.Qd3#
- 2.Qg2#
- 1...Sg3
- 2.Qd3#
- 1...Rxg6!
- threat
- 1.Qb7+?
- 1...Rd5
- 2.Qxd5#
- 1...Bxb7!
- 1...Rd5
- 1.Sf5?
- Keys
- 1.Sdb5!
- threat
- 2.Sd4#
- 2.Rd3#
- 2.Qd5#
- 1...Rxb5
- 2.Rd3#
- 1...Rxf7
- 2.Rd3#
- 1...Qh7
- 2.Sd4#
- 1...Qg8
- 2.Sd4#
- 2.Rd3#
- 1...Ra4
- 2.Rd3#
- 1...Rf5
- 2.Rd3#
- 1...Rfa6
- 2.Rd3#
- 2.Qd5#
- 1...Rb6
- 2.Rd3#
- 2.Qd5#
- 1...Rc6
- 2.Rd3#
- 2.Qd5#
- 1...Rd6
- 2.Qxf4#
- 1...Re6
- 2.Qxh5#
- 1...Rg6
- 2.Rd3#
- 2.Qd5#
- 1...Be5
- 2.Rd3#
- 2.Qd5#
- 1...Bd6
- 2.Sd4#
- 2.Qd5#
- 1...Ba7
- 2.Qd5#
- 1...Bf5
- 2.Sd4#
- 1...Be6
- 2.Sd4#
- 2.Rd3#
- 1...Bb7
- 2.Sd4#
- 2.Rd3#
- 2.Qxh5#
- 1...Bd7
- 2.Sd4#
- 2.Qd5#
- 1...Sg3
- 2.Sd4#
- 2.Rd3#
- threat
- 1.Sdb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 8
- Sets
- R(e);N_GUARD::QAB(F)
- R(e);N_GUARD::QAB(F),XR(e)
- R(g);OGATE,P_SPINP(d),XS(E)::QAR1(F),XP(d)
- R(g);OGATE,P_SPINP(d)::QAR1(F),XP(d)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(e);XS(E)::R(G)
- R(g);XS(E)::R(G)
- R(g);XQ(F)::R(G)
- R(g);::QAB(F),XP(f)
- R(g);::R(G)
- B(i);::QAB(F),XP(f)
- Refutation
- B(j);XS(E)
- Try
- Q(F);
- Threat
- DUALS(9)
- Vars
- R(g);P_SPINP(d),XS(E)::QAB(F)
- R(g);XR(H)::QAB(F)
- B(i);XS(E)::QAB(F)
- R(e);::QAB(F)
- R(e);::QAR(F)+S(C)
- R(g);::QAB(F)
- R(g);P_SPINP(d)::QAB(F)
- B(i);::QAB(F)
- B(j);::QAR(F)+S(C)
- Refutation
- R(g);P_SPINP(d)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- Q(k);::QAB1(F)
- B(j);::QAB1(F)
- S(a);::QAR2(F)
- Refutation
- R(e);
- Try
- Q(F);CHECK,XP(f)
- Vars
- B(j);N_GUARD,P_SPINB(j)::QAB1(F),XB(j)
- Refutation
- R(e);CHECK,XQ(F)
- Try
- Q(F);
- Threat
- DUALS(5)
- Vars
- S(a);::QAR2(F)
- Refutation
- R(g);P_SPINP(d),XQ(F)
- Try
- Q(F);CHECK
- Vars
- R(e);N_GUARD,P_SPINR(e)::QAB(F),XR(e)
- Refutation
- B(j);XQ(F)
- Try
- Actual
- S(E);
- Threat
- DUALS(3)
- Vars
- R(e);XS(E)::R(G)
- R(g);XQ(F)::R(G)
- Q(k);::S(E)
- R(e);::R(G)
- R(g);::R(G)
- R(g);OGATE,P_SPINP(d)::QAR1(F),XP(d)
- R(g);P_SPINP(d),S_CUTB(j)::QAB(F),XP(f)
- B(i);::QAB(F)
- B(j);::S(E)
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).