MESON Chess Problem Database
Problem Display
PID: 134829 (7K/3Rp3/1n3Npp/2N2b1r/p1k2rp1/1R2QB2/n1pP3q/8 w - - 0 1)
Chepizhni, Viktor Ivanovich
Shanshin, Valery Yurevich
1st Place, Shakhmatnaya kompozitsiya, 2007
#2
8 + 13
| 23 | Die Schwalbe | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rxf3
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Re4
- 2.d3#
- 1...Be4
- 2.Qd4#
- 1...Be6
- 2.d3#
- 1...Bxd7
- 2.d3#
- 1...Sc1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd5
- 2.Bxd5#
- 1...Sxd7
- 2.Bd5#
- 1...Sa8
- 2.Bd5#
- 1...Sc8
- 2.Bd5#
- 1...Rxf3
- Tries
- 1.Sxa4?
- threat
- 2.Sb2#
- 2.Sxb6#
- 2.Rc7#
- 1...Rxf3
- 2.Sb2#
- 2.Sxb6#
- 2.Rd4#
- 1...Bxd7
- 2.Sb2#
- 2.Sxb6#
- 2.Qd3#
- 1...Sxa4
- 2.Bd5#
- 1...Sxd7
- 2.Sb2#
- 2.Bd5#
- 1...Bd3
- 2.Qxd3#
- 1...Sc3
- 2.Qxc3#
- 1...c1Q
- 2.Sxb6#
- 2.Rc7#
- 1...c1B
- 2.Sxb6#
- 2.Rc7#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Sb2#
- 2.Sxb6#
- 2.Qd3#
- 1...Be4
- 2.Sb2#
- 2.Sxb6#
- 2.Rd4#
- 1...Be6
- 2.Sb2#
- 2.Sxb6#
- 2.Qd3#
- 1...Sd5
- 2.Sb2#
- 2.Bxd5#
- 1...Sa8
- 2.Sb2#
- 2.Bd5#
- 1...Sc8
- 2.Sb2#
- 2.Bd5#
- 2.Rc7#
- 1...Sb4!
- threat
- 1.Sb7?
- threat
- 2.Sa5#
- 2.Rc7#
- 1...Qxd2
- 2.Rc7#
- 1...Rxf3
- 2.Sa5#
- 2.Rd4#
- 1...Bxd7
- 2.Qd3#
- 1...Sxd7
- 2.Sa5#
- 2.Bd5#
- 1...axb3
- 2.Qc5#
- 1...Bd3
- 2.Qxd3#
- 1...Sc3
- 2.Sa5#
- 2.Qxc3#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Sa5#
- 2.Qd3#
- 1...Be4
- 2.Rd4#
- 1...Be6
- 2.Qd3#
- 1...Sd5
- 2.Sa5#
- 2.Bxd5#
- 1...Sa8
- 2.Sa5#
- 2.Bd5#
- 1...Sb4!
- threat
- 1.Sfe4?
- threat
- 2.Rd4#
- 2.Qd4#
- 2.Qd3#
- 2.d3#
- 1...Qxd2
- 2.Sxd2#
- 1...Rxf3
- 2.Rd4#
- 2.Qd4#
- 2.d3#
- 1...Rxe4
- 2.d3#
- 1...Bxe4
- 2.Qd4#
- 1...Bxd7
- 2.Qd3#
- 1...Sxd7
- 2.Qd3#
- 1...axb3
- 2.Qxb3#
- 1...c1S
- 2.Rd4#
- 2.Qd4#
- 1...Qg1
- 2.Be2#
- 2.Rd4#
- 2.Qe2#
- 2.Qd3#
- 2.d3#
- 1...Qe2
- 2.Bxe2#
- 2.Rd4#
- 2.Qd4#
- 2.Qxe2#
- 1...Qf2
- 2.Rd4#
- 2.Qd3#
- 2.d3#
- 1...Sc1
- 2.Rd4#
- 2.Qd4#
- 2.Qc3#
- 1...Sd5
- 2.Qd3#
- 2.d3#
- 1...e5
- 2.Sd6#
- 2.Qd3#
- 2.d3#
- 1...Sb4!
- threat
- 1.Be2+?
- 1...Bd3
- 2.Bxd3#
- 1...Qxe2!
- 1...Bd3
- 1.Bc6?
- threat
- 2.Bb5#
- 1...Bxd7
- 2.d3#
- 1...Rd4
- 2.Qxd4#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Rc3#
- 2.Qc3#
- 1...axb3!
- threat
- 1.Qd3+?
- 1...Kxc5
- 2.Rb5#
- 2.Rc7#
- 2.Qb5#
- 1...Bxd3!
- 1...Kxc5
- 1.Qe6+?
- 1...Kxc5
- 2.Qc6#
- 1...Sd5
- 2.Qxd5#
- 1...Bxe6!
- 1...Kxc5
- 1.Sxa4?
- Keys
- 1.Sa6!
- threat
- 2.Rc7#
- 1...Rxf3
- 2.Rd4#
- 1...Bxd7
- 2.Qd3#
- 1...Sxd7
- 2.Bd5#
- 1...axb3
- 2.Qc5#
- 1...Bd3
- 2.Qxd3#
- 1...Sc3
- 2.Rb4#
- 2.Qxc3#
- 1...Sb4
- 2.Rxb4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Qd3#
- 1...Be4
- 2.Rd4#
- 1...Be6
- 2.Qd3#
- 1...Sd5
- 2.Bxd5#
- 1...Sa8
- 2.Bd5#
- threat
- 1.Sa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(f);N_GUARD,XB(D)::QAR1(C)
- R(f);N_GUARD::QAR1(C),XR(f)
- R(f);S_CUTB(h)::P(A)
- B(h);S_CUTR(f)::QAR1(C)
- B(h);N_GUARD::P(A)
- B(h);N_GUARD,XR(G)::P(A)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(j);N_GUARD::B(D),XS(j)
- S(j);N_GUARD,XR(G)::B(D)
- S(j);N_GUARD::B(D)
- Tries
- Try
- S(E);XP(d)
- Threat
- DUALS(3)
- Vars
- S(j);N_GUARD,XS(E)::B(D)
- B(h);N_GUARD::QAB1(C),XB(h)
- S(a);N_GUARD::QAR1(C),XS(a)
- R(f);N_GUARD::R1(G),XR(f)
- Refutation
- S(a);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(c);XP(A)::R(G)
- B(h);N_GUARD,XR(G)::QAB1(C)
- P(d);SBLOCK,XR(B)::QAR1(C)
- B(h);N_GUARD::QAB1(C),XB(h)
- R(f);N_GUARD::R1(G),XR(f)
- B(h);S_CUTR(f)::R1(G)
- B(h);N_GUARD::QAB1(C)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- Q(c);XP(A)::S(F),XQ(c)
- R(f);XS(F)::P(A)
- B(h);XS(F)::QAR1(C)
- B(h);XR(G)::QAB1(C)
- S(j);XR(G)::QAB1(C)
- P(d);OGATE,XR(B)::QAB1(C),XP(d)
- Refutation
- S(a);
- Try
- B(D);CHECK
- Vars
- B(h);N_GUARD,P_SPINB(h)::B(D),XB(h)
- Refutation
- Q(c);XB(D)
- Try
- B(D);
- Threat
- B(D)
- Vars
- B(h);N_GUARD,XR(G)::P(A)
- R(f);N_GUARD::QAR1(C),XR(f)
- S(a);N_GUARD::QAR1(C),XS(a)
- Refutation
- P(d);XR(B)
- Try
- Q(C);CHECK
- Refutation
- B(h);XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(e);OGATEB,P-FLIGHT,XS(E)::QAR1(C)
- S(j);N_GUARD,P_SPINS(j)::QAB1(C),XS(j)
- Refutation
- B(h);XQ(C)
- Try
- Actual
- S(E);
- Threat
- R(G)
- Vars
- R(f);N_GUARD,XB(D)::R1(G)
- B(h);N_GUARD,XR(G)::QAB1(C)
- S(j);N_GUARD,XR(G)::B(D)
- P(d);SBLOCK,XR(B)::QAR1(C)
- B(h);N_GUARD::QAB1(C),XB(h)
- S(a);N_GUARD::R1(B),XS(a)
- R(f);N_GUARD::R1(G),XR(f)
- R(f);S_CUTB(h)::QAB1(C)
- B(h);S_CUTR(f)::R1(G)
- B(h);N_GUARD::QAB1(C)
- S(j);N_GUARD::B(D),XS(j)
- S(j);N_GUARD::B(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).