MESON Chess Problem Database
Problem Display
PID: 94624 (7B/Q7/8/8/2p5/p1n5/k1K5/8 w - - 0 1)
Shakhnazaryan, Albert Serapionovic
Magadansky Komsomolets, 1991
#2
3 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ka1
- 2.Qxa3#
- 1...Ka1
- Tries
- 1.Qg1?
- 1...Sb1
- 2.Qxb1#
- 1...Se2
- 2.Qa1#
- 2.Qb1#
- 1...Sa4
- 2.Qa1#
- 2.Qb1#
- 1...Se4
- 2.Qa1#
- 2.Qb1#
- 1...Sb5
- 2.Qa1#
- 2.Qb1#
- 1...Sd5
- 2.Qa1#
- 2.Qb1#
- 1...Sd1!
- 1...Sb1
- 1.Qd4?
- 1...Sd1
- 2.Qa1#
- 2.Qxc4#
- 1...Sb1
- 2.Qa1#
- 2.Qxc4#
- 1...Se2
- 2.Qa1#
- 2.Qxc4#
- 1...Sa4
- 2.Qa1#
- 2.Qxc4#
- 1...Se4
- 2.Qa1#
- 2.Qxc4#
- 1...Sb5
- 2.Qa1#
- 2.Qxc4#
- 1...Sd5
- 2.Qa1#
- 2.Qxc4#
- 1...Ka1!
- 1...Sd1
- 1.Qb6?
- 1...Ka1
- 2.Qb1#
- 1...Sd1
- 2.Qb1#
- 1...Sb1
- 2.Qxb1#
- 1...Se2
- 2.Qb1#
- 1...Sa4
- 2.Qb1#
- 1...Se4
- 2.Qb1#
- 1...Sd5
- 2.Qb1#
- 1...Sb5!
- 1...Ka1
- 1.Qb8?
- 1...Ka1
- 2.Qb1#
- 1...Sd1
- 2.Qb1#
- 1...Sb1
- 2.Qxb1#
- 1...Se2
- 2.Qb1#
- 1...Sa4
- 2.Qb1#
- 1...Se4
- 2.Qb1#
- 1...Sd5
- 2.Qb1#
- 1...Sb5!
- 1...Ka1
- 1.Qa4?
- 1...Ka1
- 2.Qxa3#
- 1...Sd1
- 2.Qxc4#
- 1...Sb1
- 2.Qxc4#
- 1...Se2
- 2.Qxc4#
- 1...Se4
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Sd5
- 2.Qxc4#
- 1...Sxa4!
- 1...Ka1
- 1.Qa6?
- 1...Ka1
- 2.Qxa3#
- 1...Sd1
- 2.Qxc4#
- 1...Sb1
- 2.Qxc4#
- 1...Se2
- 2.Qxc4#
- 1...Sa4
- 2.Qxc4#
- 1...Se4
- 2.Qxc4#
- 1...Sd5
- 2.Qxc4#
- 1...Sb5!
- 1...Ka1
- 1.Qb7?
- 1...Ka1
- 2.Qb1#
- 1...Sd1
- 2.Qb1#
- 1...Sb1
- 2.Qxb1#
- 1...Se2
- 2.Qb1#
- 1...Sa4
- 2.Qb1#
- 1...Se4
- 2.Qb1#
- 1...Sd5
- 2.Qb1#
- 1...Sb5!
- 1...Ka1
- 1.Qc7?
- 1...Sd1
- 2.Qxc4#
- 1...Sb1
- 2.Qxc4#
- 1...Se2
- 2.Qxc4#
- 1...Sa4
- 2.Qxc4#
- 1...Se4
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Sd5
- 2.Qxc4#
- 1...Ka1!
- 1...Sd1
- 1.Qg7?
- 1...Sd1
- 2.Qa1#
- 1...Sb1
- 2.Qa1#
- 1...Se2
- 2.Qa1#
- 1...Sa4
- 2.Qa1#
- 1...Se4
- 2.Qa1#
- 1...Sb5
- 2.Qa1#
- 1...Sd5
- 2.Qa1#
- 1...Ka1!
- 1...Sd1
- 1.Qg1?
- Keys
- 1.Qc5!
- 1...Ka1
- 2.Qxa3#
- 1...Sd1
- 2.Qxc4#
- 1...Sb1
- 2.Qxc4#
- 1...Se2
- 2.Qxc4#
- 1...Sa4
- 2.Qxc4#
- 1...Se4
- 2.Qxc4#
- 1...Sb5
- 2.Qxc4#
- 1...Sd5
- 2.Qxc4#
- 1...Ka1
- 1.Qc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- K(a);P-FLIGHT,P_SPINS(c)::QAR2(B),XP(b)
- Tries
- Try
- Q(B);N_PINP(b)
- Vars
- S(c);N_GUARD::QAB1(B),XS(c)
- Refutation
- S(c);
- Try
- Q(B);N_PINP(b)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- Q(B);N_PINP(b)
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR1(B)
- S(c);N_GUARD::QAB1(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- Refutation
- S(c);
- Try
- Q(B);N_PINP(b)
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR1(B)
- S(c);N_GUARD::QAB1(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- Refutation
- S(c);
- Try
- Q(B);
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR2(B),XP(b)
- S(c);::QAB(B),XP(d)
- Refutation
- S(c);N_SPINP(b),XQ(B)
- Try
- Q(B);
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR2(B),XP(b)
- S(c);::QAB(B),XP(d)
- S(c);N_SPINP(b)::QAB(B),XP(d)
- Refutation
- S(c);
- Try
- Q(B);N_PINP(b)
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR1(B)
- S(c);N_GUARD::QAB1(B)
- S(c);N_GUARD::QAB1(B),XS(c)
- Refutation
- S(c);
- Try
- Q(B);N_PINP(b)
- Vars
- S(c);::QAB(B),XP(d)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- Q(B);N_PINP(b)
- Vars
- S(c);OGATE::QAR1(B)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c)
- Try
- Actual
- Q(B);N_PINP(b)
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR2(B),XP(b)
- S(c);::QAB(B),XP(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).