MESON Chess Problem Database
Problem Display
PID: 180779 (n7/2p5/NpQ1N3/2p5/2kPB3/1p6/pn1P4/K7 w - - 0 1)
Fomichev, Evgeny Vasilevich
Sachmatija, 2017
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Qa4#
- 1...Sd3
- 2.Bd5#
- 1...Sa4
- 2.Qxa4#
- 1...b5
- 2.Qd5#
- 2.Qxc5#
- 1...Sd1
- Tries
- 1.Saxc5?
- threat
- 2.Sd3#
- 2.Sa6#
- 1...bxc5
- 2.Qxc5#
- 1...Sd3
- 2.Sxd3#
- 1...Sa4
- 2.Qxa4#
- 1...Kb4!
- threat
- 1.Sf4?
- 1...Kxd4
- 2.Qd5#
- 1...Sd1
- 2.Qa4#
- 1...Sa4
- 2.Qxa4#
- 1...b5
- 2.Qd5#
- 2.Qxc5#
- 1...Sd3!
- 1...Kxd4
- 1.Sexc5?
- threat
- 2.Se6#
- 1...Kxd4
- 2.Qd5#
- 1...bxc5
- 2.Qxc5#
- 1...Sa4
- 2.Qxa4#
- 1...Sd3!
- threat
- 1.Sg5?
- 1...Kxd4
- 2.Qd5#
- 1...Sd1
- 2.Qa4#
- 1...Sa4
- 2.Qxa4#
- 1...b5
- 2.Qd5#
- 2.Qxc5#
- 1...Sd3!
- 1...Kxd4
- 1.Sexc7?
- threat
- 2.Qd5#
- 1...Kxd4
- 2.Qd5#
- 1...Sxc7!
- threat
- 1.Sg7?
- 1...Kxd4
- 2.Qd5#
- 1...Sd1
- 2.Qa4#
- 1...Sa4
- 2.Qxa4#
- 1...b5
- 2.Qd5#
- 2.Qxc5#
- 1...Sd3!
- 1...Kxd4
- 1.Sd8?
- 1...Kxd4
- 2.Qd5#
- 1...Sd1
- 2.Qa4#
- 1...Sa4
- 2.Qxa4#
- 1...b5
- 2.Qd5#
- 2.Qxc5#
- 1...Sd3!
- 1...Kxd4
- 1.Sf8?
- 1...Kxd4
- 2.Qd5#
- 1...Sd1
- 2.Qa4#
- 1...Sa4
- 2.Qxa4#
- 1...b5
- 2.Qd5#
- 2.Qxc5#
- 1...Sd3!
- 1...Kxd4
- 1.Qd7?
- 1...cxd4
- 2.Qc6#
- 2.Qd5#
- 1...Sd3
- 2.Bd5#
- 1...Sd1
- 2.Qa4#
- 1...Sa4
- 2.Qxa4#
- 1...b5
- 2.Qd5#
- 1...c6!
- 1...cxd4
- 1.d5?
- 1...Sd1
- 2.Qa4#
- 1...Sa4
- 2.Qxa4#
- 1...b5
- 2.Qxc5#
- 1...Sd3!
- 1...Sd1
- 1.Saxc5?
- Keys
- 1.dxc5!
- threat
- 2.cxb6#
- 1...bxc5
- 2.Qxc5#
- 1...Sd3
- 2.Bd5#
- 1...Sa4
- 2.Qxa4#
- 1...b5
- 2.Qd5#
- threat
- 1.dxc5!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(b);N_GUARD::QAR2(F)
- S(b);SBLOCK::B(D)
- S(b);N_GUARD::QAR2(F),XS(b)
- Tries
- Try
- S(E);XP(e)
- Threat
- DUALS(2)
- Vars
- P(f);OGATE,P_SPINP(f),XS(E)::QAR1(F),XP(f)
- S(b);::QAR(F)+S(E),XS(b)
- S(b);N_GUARD::QAR2(F),XS(b)
- Refutation
- K(d);P-FLIGHT
- Try
- S(G);
- Vars
- K(d);N_SPINP(e),P-FLIGHT,XP(C)::QAR1(F)
- S(b);N_GUARD::QAR2(F)
- S(b);N_GUARD::QAR2(F),XS(b)
- Refutation
- S(b);
- Try
- S(G);XP(e)
- Threat
- QAR(F)+S(G)
- Vars
- K(d);P-FLIGHT,XP(C)::QAR1(F)
- P(f);OGATE,P_SPINP(f),XS(G)::QAR1(F),XP(f)
- S(b);N_GUARD::QAR2(F),XS(b)
- Refutation
- S(b);
- Try
- S(G);
- Vars
- K(d);N_SPINP(e),P-FLIGHT,XP(C)::QAR1(F)
- S(b);N_GUARD::QAR2(F)
- S(b);N_GUARD::QAR2(F),XS(b)
- Refutation
- S(b);
- Try
- S(G);XP(g)
- Threat
- QAB1(F)
- Vars
- K(d);N_SPINP(e),P-FLIGHT,XP(C)::QAR1(F)
- Refutation
- S(h);XS(G)
- Try
- S(G);
- Vars
- K(d);N_SPINP(e),P-FLIGHT,XP(C)::QAR1(F)
- S(b);N_GUARD::QAR2(F)
- S(b);N_GUARD::QAR2(F),XS(b)
- Refutation
- S(b);
- Try
- S(G);
- Vars
- K(d);N_SPINP(e),P-FLIGHT,XP(C)::QAR1(F)
- S(b);N_GUARD::QAR2(F)
- S(b);N_GUARD::QAR2(F),XS(b)
- Refutation
- S(b);
- Try
- S(G);
- Vars
- K(d);N_SPINP(e),P-FLIGHT,XP(C)::QAR1(F)
- S(b);N_GUARD::QAR2(F)
- S(b);N_GUARD::QAR2(F),XS(b)
- Refutation
- S(b);
- Try
- Q(F);N_PINP(e)
- Vars
- S(b);SBLOCK::B(D)
- S(b);N_GUARD::QAR2(F)
- S(b);N_GUARD::QAR2(F),XS(b)
- P(f);SBLOCK::QAB1(F)
- Refutation
- P(g);
- Try
- P(C);
- Vars
- S(b);N_GUARD::QAR2(F)
- S(b);N_GUARD::QAR2(F),XS(b)
- P(f);N_GUARD::QAR1(F),XP(e)
- Refutation
- S(b);
- Try
- Actual
- P(C);XP(e)
- Threat
- QAR(F)+P(C),XP(f)
- Vars
- P(f);OGATE,P_SPINP(f),XP(C)::QAR1(F),XP(f)
- S(b);SBLOCK::B(D)
- S(b);N_GUARD::QAR2(F),XS(b)
- P(f);SBLOCK::QAB1(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).