MESON Chess Problem Database
Problem Display
PID: 91990 (1R4b1/2KN4/3p2Q1/2pkB3/PP1b4/3p2R1/3P4/3B1N2 w - - 0 1)
Erokhin, Vladimir Alekseevich
Shakhmaty, 1972
#2
11 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Se3#
- 1...Bb2
- 2.Se3#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...cxb4
- 2.Bb3#
- 1...c4
- 2.Bf3#
- 1...dxe5
- 2.Sb6#
- 1...Ba1
- Tries
- 1.Sf6+?
- 1...Kc4
- 2.Qxd3#
- 1...Ke6
- 2.Re8#
- 1...Kxe5!
- 1...Kc4
- 1.Rg4?
- threat
- 2.Qxg8#
- 1...Kc4
- 2.Se3#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 1...Be6!
- threat
- 1.Rb5?
- threat
- 2.Bb3#
- 1...Kc4
- 2.Sb6#
- 1...Bxe5!
- threat
- 1.Qf7+?
- 1...Ke4
- 2.Bf3#
- 2.Rg4#
- 2.Qf3#
- 1...Bxf7!
- 1...Ke4
- 1.Sf6+?
- Keys
- 1.Rxd3!
- threat
- 2.Se3#
- 1...Kc4
- 2.Bb3#
- threat
- 1.Rxd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- B(b);N_GUARD::S(B)
- B(b);N_GUARD::S(B),XB(b)
- P(c);N_GUARD,XP(F)::B(A)
- P(c);SBLOCK::B(A)
- P(e);SBLOCK,XB(G)::S(J)
- Tries
- Try
- S(J);CHECK
- Vars
- K(d);S_FLIGHT::QAB1(H),XP(a)
- K(d);S_FLIGHT::R(K)
- Refutation
- K(d);P-FLIGHT,XB(G)
- Try
- R(D);
- Threat
- QAB(H),XB(f)
- Vars
- K(d);P_SPINB(b),S_FLIGHT::S(B)
- B(f);N_GUARD::QAB(H),XB(f)
- B(f);N_GUARD::QAB(H)
- Refutation
- B(f);
- Try
- R(K);P_PINP(c)
- Threat
- B(A)
- Vars
- K(d);N_SPINP(c),S_FLIGHT::S(J)
- Refutation
- B(b);XB(G)
- Try
- Q(H);CHECK
- Refutation
- B(f);XQ(H)
- Try
- Actual
- R(D);P_PINB(b),XP(a)
- Threat
- S(B)
- Vars
- K(d);N_SPINB(b),S_FLIGHT::B(A)
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).