MESON Chess Problem Database
Problem Display
PID: 106016 (4RB2/2p2p1p/2P1pP2/N2p4/1N1kpQ2/1p3P2/1p6/1K6 w - - 0 1)
Erokhin, Vladimir Alekseevich
64 Shakhmatnoe obozrenie, 1974
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Qe3#
- 1...e5
- 2.Qd2#
- 1...Kc3
- Tries
- 1.Sc2+?
- 1...Kc3
- 2.Qe3#
- 1...Kd3
- 2.Qe3#
- 1...bxc2+!
- 1...Kc3
- 1.Bc5+?
- 1...Kc3
- 2.Qe3#
- 1...Kxc5!
- 1...Kc3
- 1.Bd6?
- threat
- 2.Qd2#
- 1...Kc3
- 2.Qe3#
- 1...cxd6!
- threat
- 1.Bh6?
- 1...Kc3
- 2.Qd2#
- 1...e5
- 2.Qe3#
- 1...Kc5!
- 1...Kc3
- 1.Rxe6?
- threat
- 2.Qd2#
- 1...Kc3
- 2.Qe3#
- 1...fxe6!
- threat
- 1.Qxe4+?
- 1...Kc3
- 2.Qd3#
- 2.Qe3#
- 1...dxe4!
- 1...Kc3
- 1.Sc2+?
- Keys
- 1.Sxd5!
- threat
- 2.Qxe4#
- 1...Kd3
- 2.Qe3#
- 1...Kxd5
- 2.Rd8#
- 2.Qxe4#
- 1...exd5
- 2.Qd2#
- threat
- 1.Sxd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- K(c);N_SPINP(d),S_FLIGHT::QAR2(D)
- P(f);::QAR2(D)
- Tries
- Try
- S(C);CHECK
- Vars
- K(c);N_SPINP(d),S_FLIGHT::QAR2(D)
- K(c);N_SPINP(d),P-FLIGHT::QAR1(D)
- Refutation
- P(b);CHECK,XS(C)
- Try
- B(I);CHECK
- Vars
- K(c);N_SPINP(d),S_FLIGHT::QAR2(D)
- Refutation
- K(c);N_SPINP(d),S_FLIGHT,XB(I)
- Try
- B(I);
- Threat
- QAR2(D)
- Vars
- K(c);N_SPINP(d),S_FLIGHT::QAR2(D)
- Refutation
- P(g);XB(I)
- Try
- B(I);
- Vars
- K(c);N_SPINP(d),S_FLIGHT::QAB1(D)
- P(f);::QAB1(D)
- Refutation
- K(c);N_SPINP(d),S_FLIGHT
- Try
- R(H);XP(f)
- Threat
- QAR2(D)
- Vars
- K(c);N_SPINP(d),S_FLIGHT::QAR2(D)
- Refutation
- P(h);XR(H)
- Try
- Q(D);CHECK,XP(d)
- Refutation
- P(e);XQ(D)
- Try
- Actual
- S(C);XP(e)
- Threat
- QAR1(D),XP(d)
- Vars
- K(c);N_SPINP(d),P-FLIGHT::QAR1(D)
- P(f);SBLOCK,XS(C)::QAR2(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).