MESON Chess Problem Database
Problem Display
PID: 169020 (2b3r1/K3p3/2B4p/2Q5/4Pk1P/4NP2/n3RP1n/4N3 w - - 0 1)
Shanshin, Valery Yurevich
SuperProblem, 2017
#2
10 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rg2
- 2.S3xg2#
- 1...Rd8
- 2.S3g2#
- 1...Re8
- 2.S3g2#
- 1...Rf8
- 2.S3g2#
- 1...Rh8
- 2.S3g2#
- 1...Bg4
- 2.S3g2#
- 1...Bf5
- 2.Qxf5#
- 1...Ba6
- 2.Qf5#
- 1...Bb7
- 2.Qf5#
- 1...Sxf3
- 2.Sd3#
- 1...Sg4
- 2.S3g2#
- 1...e5
- 2.Sd5#
- 1...Rg2
- Tries
- 1.Qd4?
- threat
- 2.Sd5#
- 2.e5#
- 1...Sxf3
- 2.Sd3#
- 1...Rg5
- 2.e5#
- 1...Rd8
- 2.S3g2#
- 1...Bf5
- 2.Sd5#
- 2.exf5#
- 1...Be6
- 2.e5#
- 1...Sb4
- 2.e5#
- 1...e5
- 2.Sd5#
- 1...e6
- 2.Qf6#
- 2.e5#
- 1...Sc3!
- threat
- 1.Qd6+?
- 1...e5
- 2.Sd5#
- 1...exd6!
- 1...e5
- 1.Qxe7?
- threat
- 2.Sd5#
- 2.Qd6#
- 2.Qc7#
- 1...Sxf3
- 2.Sd3#
- 1...Be6
- 2.Qd6#
- 2.Qc7#
- 1...Rg6
- 2.Sd5#
- 1...Rg7
- 2.Sd5#
- 1...Rd8
- 2.S3g2#
- 1...Re8
- 2.S3g2#
- 2.Sd5#
- 1...Bd7
- 2.Sd5#
- 2.Qd6#
- 1...Sc3
- 2.Qd6#
- 2.Qc7#
- 1...Sb4
- 2.Qd6#
- 2.Qc7#
- 1...Sg4
- 2.S3g2#
- 2.Sd5#
- 1...Rg5!
- threat
- 1.Qh5?
- threat
- 2.Sd3#
- 2.Sd5#
- 1...Rg5
- 2.Sd3#
- 1...Bf5
- 2.Sd3#
- 2.Qxf5#
- 1...Rg4
- 2.Sd5#
- 1...Rd8
- 2.S1g2#
- 2.S3g2#
- 1...Bg4
- 2.S3g2#
- 2.Sd5#
- 1...Ba6
- 2.Sd5#
- 2.Qf5#
- 1...Be6
- 2.Sd3#
- 1...Sc1
- 2.Sd5#
- 1...Sc3
- 2.Sd3#
- 1...Sg4
- 2.S3g2#
- 2.Sd5#
- 1...e6
- 2.Sd3#
- 1...Sb4!
- threat
- 1.Qd4?
- Keys
- 1.e5!
- threat
- 2.Sd3#
- 2.Qd4#
- 1...Sxf3
- 2.Sd3#
- 1...Rd8
- 2.S1g2#
- 1...Bf5
- 2.Sd5#
- 1...Ba6
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sc3
- 2.Sd3#
- 1...Sb4
- 2.Qd4#
- threat
- 1.e5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- R(g);N_GUARD::S(D),XR(g)
- R(g);N_GUARD::S(D)
- B(f);S_CUTR(g)::S(D)
- B(f);N_GUARD::QAR1(H),XB(f)
- B(f);N_GUARD::QAR1(H)
- S(b);SBLOCK,XP(E)::S(A)
- S(b);S_CUTR(g)::S(D)
- P(e);SBLOCK::S(D)
- Tries
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(b);SBLOCK,XP(E)::S(A)
- R(g);::QAR(H)+P(F)
- R(g);N_GUARD::S(D)
- B(f);::QAR(H)+P(F)
- S(a);::QAR(H)+P(F)
- P(e);::S(D)
- Refutation
- S(a);
- Try
- Q(H);CHECK
- Vars
- P(e);P_SPINP(e)::S(D)
- Refutation
- P(e);XQ(H)
- Try
- Q(H);XP(e)
- Threat
- DUALS(3)
- Vars
- S(b);SBLOCK,XP(E)::S(A)
- R(g);::S(D)
- R(g);P_PINQ(H)::S(D)
- R(g);N_GUARD::S(D)
- Refutation
- R(g);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(g);::S(A)
- R(g);::S(D)
- B(f);::S(A)
- S(a);::S(D)
- S(a);::S(A)
- P(e);::S(A)
- Refutation
- S(a);
- Try
- Actual
- P(F);
- Threat
- DUALS(2)
- Vars
- S(b);XP(E)::S(A)
- R(g);N_GUARD::S(A)
- B(f);SBLOCK::S(D)
- B(f);::QAR2(H)
- S(a);::QAR2(H)
- S(a);::S(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).