MESON Chess Problem Database
Problem Display
PID: 263290 (3K4/2p4P/1p3P2/bQpkpRN1/4Np2/2p3p1/b1P3rr/2R3BB w - - 0 1)
Erokhin, Vladimir Alekseevich
Szachy, 1973
#2
11 + 12
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Bc4
- 2.Qd7#
- 1...c6
- 2.Qd3#
- 1...Bc4
- Tries
- 1.Kxc7?
- threat
- 2.Qd3#
- 1...Rd2
- 2.Sxc3#
- 1...Bc4
- 2.Qc6#
- 2.Qd7#
- 1...Rxh7+!
- threat
- 1.Kd7?
- threat
- 2.Qd3#
- 1...Rd2
- 2.Sxc3#
- 1...Bc4
- 2.Qc6#
- 1...Rxh7+!
- threat
- 1.Sxc3+?
- 1...Kd6
- 2.Qd7#
- 1...Bxc3!
- 1...Kd6
- 1.Sf3?
- threat
- 2.Rxe5#
- 1...Kxe4
- 2.Qd3#
- 1...Ke6
- 2.Qd7#
- 1...Rh5!
- threat
- 1.Bxg2?
- threat
- 2.Rd1#
- 1...Bc4
- 2.Qd7#
- 1...Rxg2!
- threat
- 1.Kxc7?
- Keys
- 1.Sf2!
- threat
- 2.Rd1#
- 1...Kd4
- 2.Qd3#
- 1...Kd6
- 2.Qd7#
- 1...Bc4
- 2.Qd7#
- threat
- 1.Sf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(a);SBLOCK::QAR2(F)
- P(l);SBLOCK::QAR2(F)
- Tries
- Try
- K(K);S_FLIGHT,XP(l)
- Threat
- QAR2(F)
- Vars
- R(b);::B(C)+S(E),DCHECK,XP(d)
- Refutation
- R(c);CHECK,XP(J)
- Try
- K(K);P-FLIGHT
- Threat
- QAR2(F)
- Vars
- R(b);::B(C)+S(E),DCHECK,XP(d)
- B(a);SBLOCK::QAB1(F)
- Refutation
- R(c);CHECK,XP(J)
- Try
- S(E);CHECK,P_PINR(b),XP(d)
- Vars
- K(i);N_GUARD,N_SPINP(h),N_SPINR(b),P-FLIGHT::QAR1(F)
- Refutation
- B(g);XS(E)
- Try
- S(H);
- Threat
- R1(G),XP(j)
- Vars
- K(i);N_GUARD,N_SPINP(h),S_FLIGHT,XS(E)::QAB1(F)
- K(i);N_GUARD,N_SPINP(h),S_FLIGHT::QAB1(F)
- Refutation
- R(c);
- Try
- B(C);XR(b)
- Threat
- R(A)
- Vars
- B(a);SBLOCK::QAR2(F)
- Refutation
- R(c);XB(C)
- Try
- Actual
- S(E);P_PINR(b)
- Threat
- R(A)
- Vars
- K(i);N_GUARD,N_SPINP(h),N_SPINR(b),P-FLIGHT::QAR1(F)
- B(a);SBLOCK::QAR2(F)
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).