MESON Chess Problem Database
Problem Display
PID: 179666 (6Q1/2K2p2/3pNR2/3R1N1p/4k2P/b3p3/1p4PB/2nr4 w - - 0 1)
Gorbatenko, Yuri Grigorevich
Kopnin, Aleksey Grigorevich
3rd Comm., 64 Shakhmatnoe obozrenie, 1969
#2
9 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Rd4#
- 1...Rf1
- 2.Rd4#
- 1...Rg1
- 2.Rd4#
- 1...Rh1
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Sd3
- 2.Rd4#
- 1...fxe6
- 2.Qxe6#
- 1...Re1
- Tries
- 1.Kc6?
- threat
- 2.Sg3#
- 2.Sg5#
- 1...fxe6
- 2.Sg3#
- 2.Rxe6#
- 2.Qxe6#
- 1...Rd4
- 2.Rxd4#
- 1...Se2
- 2.Sg5#
- 1...e2
- 2.Sg5#
- 1...Rxd5!
- threat
- 1.Sxd6+?
- 1...Kxd5
- 2.Qg5#
- 2.Qa8#
- 1...Bxd6+!
- 1...Kxd5
- 1.Sf4?
- threat
- 2.Sg3#
- 2.Qe8#
- 1...Se2
- 2.Qe8#
- 1...Sd3
- 2.Sg3#
- 1...e2
- 2.Qe8#
- 1...Rxd5!
- threat
- 1.Rxd1?
- threat
- 2.Sg5#
- 2.Rd4#
- 1...fxe6
- 2.Rd4#
- 2.Qxe6#
- 1...Bc5
- 2.Sg5#
- 1...Se2
- 2.Sg5#
- 1...Sb3
- 2.Sg5#
- 1...Sd3!
- threat
- 1.Qh7?
- threat
- 2.Se7#
- 1...Kxd5
- 2.Sxe3#
- 1...Rxd5
- 2.Sxd6#
- 1...Rf1
- 2.Rd4#
- 1...e2!
- threat
- 1.Qg3?
- threat
- 2.Qf3#
- 1...Rxd5
- 2.Qxe3#
- 1...Rd4
- 2.Rxd4#
- 1...Rf1
- 2.Rd4#
- 1...Kxd5!
- threat
- 1.Qg4+?
- 1...Kxd5
- 2.Sxe3#
- 2.Se7#
- 1...hxg4!
- 1...Kxd5
- 1.Qg5?
- threat
- 2.Sg3#
- 1...Kxd5
- 2.Sxd6#
- 1...Rxd5
- 2.Qxe3#
- 1...Rd4
- 2.Rxd4#
- 1...Se2!
- threat
- 1.Qa8?
- threat
- 2.Sg3#
- 2.Sg5#
- 2.Rd4#
- 1...fxe6
- 2.Sg3#
- 2.Rd4#
- 2.Rxe6#
- 1...Rd4
- 2.Rxd4#
- 1...Se2
- 2.Sg5#
- 2.Rd4#
- 1...e2
- 2.Sg5#
- 2.Rd4#
- 1...Rxd5!
- threat
- 1.Kc6?
- Keys
- 1.Qe8!
- threat
- 2.Sf4#
- 1...Kxd5
- 2.Qc6#
- 1...Rxd5
- 2.Sc5#
- 1...fxe6
- 2.Qxe6#
- 1...Sd3
- 2.Rd4#
- threat
- 1.Qe8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::R1(D)
- R(b);N_GUARD::R1(D),XR(b)
- S(a);S_CUTR(b)::R1(D)
- P(i);OGATE,XS(F)::QAR2(I),XP(i)
- Tries
- Try
- K(H);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD::R1(D),XR(b)
- S(a);::S(F)
- P(e);::S(F)
- Refutation
- R(b);XR(D)
- Try
- S(E);CHECK,XP(h)
- Refutation
- B(d);CHECK,XS(E)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(a);::QAR(I)
- S(a);::S(E)
- P(e);::QAR(I)
- Refutation
- R(b);XR(D)
- Try
- R(D);XR(b)
- Threat
- DUALS(2)
- Vars
- B(d);::S(F)
- S(a);::S(F)
- Refutation
- S(a);
- Try
- Q(I);
- Threat
- QAB(I)+S(E)
- Vars
- K(f);S_FLIGHT,XR(D)::S(E),XP(e)
- R(b);SBLOCK,XR(D)::QAB(I)+S(E),DCHECK,XP(h)
- R(b);N_GUARD::R1(D)
- Refutation
- P(e);
- Try
- Q(I);
- Threat
- QAB1(I)
- Vars
- R(b);SBLOCK,XR(D)::QAR1(I),XP(e)
- R(b);N_GUARD::R1(D),XR(b)
- R(b);N_GUARD::R1(D)
- Refutation
- K(f);S_FLIGHT,XR(D)
- Try
- Q(I);CHECK
- Refutation
- P(g);XQ(I)
- Try
- Q(I);
- Threat
- S(E)
- Vars
- K(f);S_FLIGHT,XR(D)::QAR(I)+S(E),XP(h)
- R(b);SBLOCK,XR(D)::QAR1(I),XP(e)
- R(b);N_GUARD::R1(D),XR(b)
- Refutation
- S(a);
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- R(b);::QAB(I)+R(D),DCHECK,XR(b)
- Refutation
- R(b);P_SPINR(b),XR(D)
- Try
- Actual
- Q(I);
- Threat
- QAR(I)+S(F)
- Vars
- K(f);OGATEB,S_FLIGHT,XR(D)::QAB1(I)
- R(b);SBLOCK,XR(D)::QAR(I)+S(F),DCHECK
- P(i);OGATE,P_SPINP(i),XS(F)::QAR2(I),XP(i)
- S(a);S_CUTR(b)::R1(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).