MESON Chess Problem Database
Problem Display
PID: 213003 (3r3B/qn2p1N1/pr4p1/2P1kPK1/R1B1P3/2N1P3/1QP5/8 w - - 0 1)
Apro, Laszlo
Stella Polaris, 1967
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Rxb2
- 2.Se8#
- 1...Rb3
- 2.Se8#
- 1...Rb4
- 2.Se8#
- 1...Rb5
- 2.Se8#
- 1...Rd1
- 2.Se6#
- 1...Rd2
- 2.Se6#
- 1...Rd3
- 2.Se6#
- 1...Rd4
- 2.Se6#
- 1...Rd5
- 2.Se6#
- 1...Rd6
- 2.Se6#
- 1...Rd7
- 2.Se6#
- 1...Sd6
- 2.Se8#
- 1...e6
- 2.Se8#
- 1...Rxb2
- Tries
- 1.Sb5+?
- 1...Rd4
- 2.Qxd4#
- 1...Kxe4!
- 1...Rd4
- 1.Bb3?
- threat
- 2.Sd5#
- 1...Rxb3
- 2.Se8#
- 1...Rb4
- 2.Se8#
- 1...Rd1
- 2.Sxd1#
- 2.Se6#
- 1...Rd2
- 2.Se6#
- 1...Rd3
- 2.Se6#
- 1...Rd4
- 2.Se6#
- 2.exd4#
- 1...Rd5
- 2.Sxd5#
- 2.Se6#
- 1...Sxc5!
- threat
- 1.Bb5?
- threat
- 2.Sd5#
- 1...Rxb5
- 2.Se8#
- 1...Rd1
- 2.Sxd1#
- 2.Se6#
- 1...Rd2
- 2.Se6#
- 1...Rd3
- 2.Se6#
- 1...Rd4
- 2.Se6#
- 2.exd4#
- 1...Rd5
- 2.Sxd5#
- 2.Se6#
- 1...Sxc5!
- threat
- 1.Be6?
- threat
- 2.Se8#
- 1...Rxe6
- 2.Sd5#
- 1...Rxh8
- 2.Sb5#
- 1...Re8
- 2.Sb5#
- 2.Sxe8#
- 1...Rf8
- 2.Sb5#
- 1...Rg8
- 2.Sb5#
- 1...gxf5!
- threat
- 1.Bg8?
- threat
- 2.Se6#
- 1...Rxg8
- 2.Sb5#
- 1...Rf6
- 2.Sd5#
- 1...Re6
- 2.Sd5#
- 2.Sxe6#
- 1...Rf8
- 2.Sb5#
- 1...e6
- 2.Sh5#
- 2.Sxe6#
- 2.Se8#
- 1...Sxc5!
- threat
- 1.Qxb6?
- threat
- 2.Se8#
- 2.Qe6#
- 1...Rxh8
- 2.Qe6#
- 1...Sxc5
- 2.Se8#
- 1...Rd6
- 2.Se6#
- 1...Re8
- 2.Sxe8#
- 2.Qe6#
- 1...Rf8
- 2.Qe6#
- 1...Rg8
- 2.Qe6#
- 1...Sd6
- 2.Se8#
- 1...e6
- 2.Se8#
- 2.Qxe6#
- 1...Qxb6!
- threat
- 1.Sb5+?
- Keys
- 1.Bd5!
- threat
- 2.Sb5#
- 1...Rxb2
- 2.Se8#
- 1...Rxd5
- 2.Se6#
- 1...Rb3
- 2.Se8#
- 1...Rb4
- 2.Se8#
- 1...Rb5
- 2.Sxb5#
- 2.Se8#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(c);N_GUARD,XQ(A)::B(L)+S(K)
- R(c);N_GUARD::B(L)+S(K)
- R(h);N_GUARD::B(L)+S(K)
- S(f);S_CUTR(c)::B(L)+S(K)
- P(g);S_CUTR(c)::B(L)+S(K)
- Tries
- Try
- S(C);CHECK
- Vars
- R(h);N_GUARD,P_SPINR(h)::QAB1(A),XR(h)
- Refutation
- K(a);P-FLIGHT,XP(G)
- Try
- B(F);
- Threat
- QAB(A)+S(C)
- Vars
- R(c);N_GUARD,XB(F)::B(L)+S(K)
- R(c);N_GUARD::B(L)+S(K)
- R(h);N_GUARD::B(L)+S(K)
- Refutation
- S(f);XP(H)
- Try
- B(F);
- Threat
- QAB(A)+S(C)
- Vars
- R(c);N_GUARD,XB(F)::B(L)+S(K)
- R(h);N_GUARD::B(L)+S(K)
- Refutation
- S(f);XP(H)
- Try
- B(F);
- Threat
- B(L)+S(K)
- Vars
- R(c);N_GUARD,XB(F)::QAB(A)+S(C)
- R(h);N_GUARD,XB(L)::QAB(A)+S(C)
- R(h);N_GUARD::QAB(A)+S(C)
- Refutation
- P(d);XP(I)
- Try
- B(F);
- Threat
- B(L)+S(K)
- Vars
- R(h);N_GUARD,XB(F)::QAB(A)+S(C)
- R(c);N_GUARD::QAB(A)+S(C)
- R(h);N_GUARD::QAB(A)+S(C)
- Refutation
- S(f);XP(H)
- Try
- Q(A);XR(c)
- Threat
- DUALS(2)
- Vars
- R(h);XB(L)::QAR1(A)
- S(f);XP(H)::B(L)+S(K)
- R(h);N_GUARD::B(L)+S(K)
- R(h);::QAR1(A)
- S(f);::B(L)+S(K)
- Refutation
- Q(e);XQ(A)
- Try
- Actual
- B(F);
- Threat
- QAB(A)+S(C)
- Vars
- R(c);N_GUARD,XQ(A)::B(L)+S(K)
- R(h);N_GUARD,XB(F)::B(L)+S(K)
- R(c);N_GUARD::B(L)+S(K)
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).