MESON Chess Problem Database
Problem Display
PID: 150256 (2B5/1R1prn2/1Nk5/5N2/1P3p1q/2pQ4/K2n4/7b w - - 0 1)
Janevski, Zivko
2nd Prize, Schweizerische Schachzeitung, 2008
#2
7 + 9
| 23 | Die Schwalbe | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qf2
- 2.Sxe7#
- 1...Qg3
- 2.Sxe7#
- 1...Qh2
- 2.Sxe7#
- 1...Qh3
- 2.Sxe7#
- 1...Qg4
- 2.Sxe7#
- 1...Qh5
- 2.Sxe7#
- 1...Qh6
- 2.Sxe7#
- 1...Qh7
- 2.Sxe7#
- 1...Qh8
- 2.Sxe7#
- 1...Re1
- 2.Qxd7#
- 1...Re2
- 2.Qxd7#
- 1...Re3
- 2.Qxd7#
- 1...Re4
- 2.Qd5#
- 2.Qxd7#
- 1...Re5
- 2.Qxd7#
- 1...Re6
- 2.Qxd7#
- 1...Re8
- 2.Qxd7#
- 1...Bd5+
- 2.Qxd5#
- 1...Sb1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sf3
- 2.Qc4#
- 2.Qd5#
- 1...Sc4
- 2.Qxc4#
- 1...Se4
- 2.Qd5#
- 1...Sg5
- 2.Sxe7#
- 1...Sd6
- 2.Sd4#
- 1...f3
- 2.Qd5#
- 1...d6
- 2.Sd4#
- 1...Qf2
- Tries
- 1.Sa4?
- threat
- 2.Qb5#
- 2.b5#
- 1...Re5
- 2.Qxd7#
- 1...Sc4
- 2.Qxc4#
- 2.b5#
- 1...Sd6
- 2.Qxd6#
- 1...Bd5+!
- threat
- 1.Sc4?
- threat
- 2.Sa5#
- 1...Sxc4
- 2.Qxc4#
- 1...Re5
- 2.Qxd7#
- 1...Bd5
- 2.Sd4#
- 1...Sb3!
- threat
- 1.Sd5?
- threat
- 2.Rb6#
- 2.Rc7#
- 2.Qb5#
- 1...Qf2
- 2.Sdxe7#
- 2.Rc7#
- 2.Qb5#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Rb6#
- 2.Rc7#
- 1...d6
- 2.Rb6#
- 2.Qb5#
- 1...Bxd5+!
- threat
- 1.Sxd7?
- threat
- 2.Sb8#
- 2.Qb5#
- 2.b5#
- 1...Rxd7
- 2.Qb5#
- 2.Qxd7#
- 1...Re5
- 2.Sb8#
- 1...Sc4
- 2.Sb8#
- 2.Qxc4#
- 2.b5#
- 1...Sd6
- 2.Sb8#
- 2.Qxd6#
- 1...Bd5+!
- threat
- 1.Sa8?
- threat
- 2.Rb6#
- 2.Rc7#
- 2.Qb5#
- 1...Qf2
- 2.Sxe7#
- 2.Rc7#
- 2.Qb5#
- 1...Re5
- 2.Rb6#
- 2.Rc7#
- 2.Qxd7#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Rb6#
- 2.Rc7#
- 2.Qxd6#
- 1...d5
- 2.Rb6#
- 2.Qb5#
- 2.Qa6#
- 1...d6
- 2.Rb6#
- 2.Qb5#
- 1...Bd5+!
- threat
- 1.Bxd7+?
- 1...Rxd7
- 2.Qxd7#
- 1...Kxb7!
- 1...Rxd7
- 1.Qxc3+?
- 1...Sc4
- 2.Qxc4#
- 1...Kb5!
- 1...Sc4
- 1.Qd6+?
- 1...Sxd6
- 2.Sd4#
- 1...Kb5!
- 1...Sxd6
- 1.Sa4?
- Keys
- 1.Qa6!
- threat
- 2.Qa4#
- 1...Bd5+
- 2.Sc4#
- 1...Re5
- 2.Bxd7#
- 1...Sd6
- 2.Sd4#
- threat
- 1.Qa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 21
- Sets
- Q(e);N_GUARD::S(D),XR(h)
- R(h);N_GUARD::QAB1(B),XP(g)
- B(a);CHECK,N_GUARD::QAB1(B),XB(a)
- S(b);N_GUARD::QAR2(B)
- S(b);N_GUARD::QAR2(B),XS(b)
- S(b);S_CUTB(a)::QAB1(B)
- S(i);S_CUTQ(e)::S(D),XR(h)
- S(i);SBLOCK::S(D)
- P(d);S_CUTB(a)::QAB1(B)
- P(g);SBLOCK::S(D)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(h);N_GUARD::QAB1(B),XP(g)
- S(i);N_GUARD::QAR1(B),XS(i)
- Refutation
- B(a);CHECK
- Try
- S(E);
- Threat
- S(E)
- Vars
- S(b);OGATE,XS(E)::QAR2(B),XS(b)
- R(h);N_GUARD::QAB1(B),XP(g)
- B(a);P_PINS(E),SBLOCK::S(D)
- Refutation
- S(b);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD::QAR2(B),XS(b)
- Refutation
- B(a);CHECK,XS(E)
- Try
- S(E);XP(g)
- Threat
- DUALS(3)
- Vars
- R(h);::S(E)
- Refutation
- B(a);CHECK
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD::QAR2(B),XS(b)
- Refutation
- B(a);CHECK
- Try
- B(G);CHECK,XP(g)
- Vars
- R(h);OGATE,XB(G)::QAB1(B),XR(h)
- Refutation
- K(f);S_FLIGHT,XR(F)
- Try
- Q(B);CHECK,XP(c)
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAR2(B),XS(b)
- Refutation
- K(f);S_FLIGHT
- Try
- Q(B);CHECK
- Vars
- S(i);SBLOCK,XQ(B)::S(D)
- Refutation
- K(f);S_FLIGHT
- Try
- Actual
- Q(B);
- Threat
- QAB(B)
- Vars
- B(a);CHECK,SBLOCK::QAR(B)+S(E)
- R(h);N_GUARD::B(G),XP(g)
- S(i);SBLOCK::S(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).