MESON Chess Problem Database
Problem Display
PID: 159564 (1NKB4/1P1pP2r/2Pk4/1Rp2Q2/4r3/4p3/R7/7b w - - 0 1)
Einat, Paz
1st Prize, Retter-75 JT, 2011
#2
9 + 7
| 145 | StrateGems | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.e8S#
- 1...Rb4
- 2.e8S#
- 1...Rc4
- 2.e8S#
- 1...Rd4
- 2.e8S#
- 1...Rf4
- 2.e8S#
- 1...Rg4
- 2.e8S#
- 1...Reh4
- 2.e8S#
- 1...Re5
- 2.Qxd7#
- 1...Re6
- 2.Qxc5#
- 1...Rexe7
- 2.Bc7#
- 1...Rhxe7
- 2.Bc7#
- 1...c4
- 2.Rd5#
- 2.Qxd7#
- 2.Qd5#
- 1...Ra4
- Tries
- 1.Rd2+?
- 1...Rd4
- 2.e8S#
- 1...exd2!
- 1...Rd4
- 1.Rxc5?
- threat
- 2.Rd5#
- 2.Qd5#
- 1...Rexe7
- 2.Bc7#
- 1...dxc6
- 2.Rxc6#
- 1...Re5
- 2.Qxe5#
- 1...Ra4
- 2.Qe5#
- 2.e8S#
- 1...Rb4
- 2.Qe5#
- 2.e8S#
- 1...Rc4
- 2.Qe5#
- 2.e8S#
- 1...Rd4
- 2.Qe5#
- 2.e8S#
- 1...Rf4
- 2.Qe5#
- 2.e8S#
- 1...Rg4
- 2.Qe5#
- 2.e8S#
- 1...Reh4
- 2.Qe5#
- 2.e8S#
- 1...Rh5
- 2.Rd5#
- 1...Re6!
- threat
- 1.Rb6?
- threat
- 2.cxd7#
- 2.c7#
- 1...Rexe7
- 2.Bc7#
- 1...dxc6
- 2.Rxc6#
- 1...Re5
- 2.Qxd7#
- 1...Ra4
- 2.e8S#
- 1...Rb4
- 2.e8S#
- 1...Rc4
- 2.e8S#
- 1...Rd4
- 2.e8S#
- 1...Rf4
- 2.e8S#
- 1...Rg4
- 2.e8S#
- 1...Reh4
- 2.e8S#
- 1...Re6!
- threat
- 1.cxd7?
- threat
- 2.Ra6#
- 2.Rb6#
- 1...Rexe7
- 2.Bc7#
- 1...Ra4
- 2.e8S#
- 1...Rb4
- 2.e8S#
- 1...Rc4
- 2.e8S#
- 1...Rd4
- 2.e8S#
- 1...Rf4
- 2.e8S#
- 1...Rg4
- 2.e8S#
- 1...Reh4
- 2.e8S#
- 1...Re6
- 2.Qxc5#
- 1...Re5!
- threat
- 1.c7?
- threat
- 2.Ra6#
- 2.Rb6#
- 1...Re5
- 2.Qxd7#
- 1...Ra4
- 2.e8S#
- 1...Rb4
- 2.e8S#
- 1...Rc4
- 2.e8S#
- 1...Rd4
- 2.e8S#
- 1...Rf4
- 2.e8S#
- 1...Rg4
- 2.e8S#
- 1...Reh4
- 2.e8S#
- 1...Re6
- 2.Qxc5#
- 1...Rexe7!
- threat
- 1.e8Q?
- threat
- 2.Bc7#
- 2.Qxc5#
- 1...dxc6
- 2.Qxc6#
- 2.Qxc5#
- 1...Re5
- 2.Qfxe5#
- 2.Qexe5#
- 1...Rc4
- 2.Bc7#
- 2.Qeg6#
- 2.Qfe5#
- 2.Qee5#
- 1...Ree7
- 2.Bc7#
- 1...Rh5
- 2.Bc7#
- 2.Qfxd7#
- 2.Qexd7#
- 1...Rhe7
- 2.Bc7#
- 1...c4
- 2.Bc7#
- 2.Rd5#
- 2.Qc5#
- 2.Qd5#
- 1...Rxe8!
- threat
- 1.e8R?
- threat
- 2.Bc7#
- 2.Qxc5#
- 1...dxc6
- 2.Qxc5#
- 1...Re5
- 2.Qxe5#
- 1...Rc4
- 2.Bc7#
- 2.Qe5#
- 1...Ree7
- 2.Bc7#
- 1...Rh5
- 2.Bc7#
- 2.Qxd7#
- 1...Rhe7
- 2.Bc7#
- 1...c4
- 2.Bc7#
- 2.Rd5#
- 2.Qc5#
- 2.Qd5#
- 1...Rxe8!
- threat
- 1.Rd2+?
- Keys
- 1.Ra6!
- threat
- 2.cxd7#
- 2.c7#
- 1...Rexe7
- 2.Bc7#
- 1...dxc6
- 2.Rxc6#
- 1...Re5
- 2.Qxd7#
- 1...Ra4
- 2.e8S#
- 1...Rb4
- 2.e8S#
- 1...Rc4
- 2.e8S#
- 1...Rd4
- 2.e8S#
- 1...Rf4
- 2.e8S#
- 1...Rg4
- 2.e8S#
- 1...Reh4
- 2.e8S#
- 1...Re6
- 2.Qxc5#
- threat
- 1.Ra6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(c);N_GUARD::P=S
- R(c);SBLOCK::QAR1(C),XP(f)
- R(c);SBLOCK::QAB1(C),XP(d)
- R(c);SBLOCK,XP(F)::B(I)
- R(g);SBLOCK,XP(F)::B(I)
- Tries
- Try
- R(A);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c),S_CUTP(b)::P=S
- Refutation
- P(b);XR(A)
- Try
- R(B);XP(d)
- Threat
- DUALS(2)
- Vars
- R(c);SBLOCK,XP(F)::B(I)
- P(f);OGATE,XP(D)::R1(B),XP(f)
- R(c);N_GUARD::QAB1(C),XR(c)
- R(g);::R1(B)
- Refutation
- R(c);
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(c);SBLOCK,XP(F)::B(I)
- P(f);OGATE,P_SPINP(f),XP(D)::R1(B),XP(f)
- R(c);SBLOCK::QAR1(C),XP(f)
- R(c);N_GUARD::P=S
- Refutation
- R(c);
- Try
- P(D);XP(f)
- Threat
- DUALS(2)
- Vars
- R(c);SBLOCK,XP(F)::B(I)
- R(c);N_GUARD::P=S
- R(c);SBLOCK::QAB1(C),XP(d)
- Refutation
- R(c);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- R(c);SBLOCK::QAR1(C),XP(f)
- R(c);N_GUARD::P=S
- R(c);SBLOCK::QAB1(C),XP(d)
- Refutation
- R(c);XP(F)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- R(c);::B(I)
- R(g);::B(I)
- Refutation
- R(c);P_PINB(I),XQ(F)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- P(f);XP(D)::QAB1(C),XP(d)
- R(c);N_GUARD::QAB1(C),XR(c)
- R(c);::B(I)
- R(g);::B(I)
- Refutation
- R(c);P_PINB(I),XR(F)
- Try
- Actual
- R(A);
- Threat
- DUALS(2)
- Vars
- R(c);SBLOCK,XP(F)::B(I)
- P(f);OGATE,P_SPINP(f),XP(D)::R1(A),XP(f)
- R(c);SBLOCK::QAR1(C),XP(f)
- R(c);N_GUARD::P=S
- R(c);SBLOCK::QAB1(C),XP(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).