MESON Chess Problem Database
Problem Display
PID: 166030 (5n2/5pp1/1NR3p1/4k1rN/KB5Q/1p2P2p/b1Bn1Rpq/b7 w - - 0 1)
Shanshin, Valery Yurevich
2nd Prize, Die Schwalbe 178. (Ahues MT) TT, 2017
#2
9 + 13
| 23 | Die Schwalbe | 2017 |
| 56 | The Problemist | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Qf4#
- 1...Qf4
- 2.Qxf4#
- 1...Qh1
- 2.Qf4#
- 1...Rg3
- 2.Qf4#
- 1...Bc3
- 2.Bxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Sb1
- 2.Qe4#
- 1...Sf1
- 2.Qe4#
- 1...Sf3
- 2.Qe4#
- 1...Sc4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Se6
- 2.Bd6#
- 1...b2
- 2.Bc3#
- 2.Qd4#
- 1...Qg1
- Tries
- 1.Sxg7?
- threat
- 2.Bd6#
- 1...Qf4
- 2.Qxf4#
- 1...Rg4
- 2.Qf6#
- 1...Sf3
- 2.Qe4#
- 1...Sc4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...f5!
- threat
- 1.Sc4+?
- 1...Sxc4
- 2.Qe4#
- 1...Kd5!
- 1...Sxc4
- 1.Rxd2?
- threat
- 2.Sc4#
- 2.Rd5#
- 2.Qe4#
- 1...Qf4
- 2.Rd5#
- 2.Qxf4#
- 2.exf4#
- 1...Rg4
- 2.Rd5#
- 1...Bd4
- 2.Qxd4#
- 2.Qe4#
- 2.exd4#
- 1...b2
- 2.Bc3#
- 2.Qd4#
- 2.Qe4#
- 1...f5
- 2.Sc4#
- 2.Rd5#
- 1...bxc2!
- threat
- 1.Rff6?
- threat
- 2.Bd6#
- 2.Rc5#
- 2.Qxg5#
- 1...Rxh5
- 2.Bd6#
- 2.Rc5#
- 1...bxc2
- 2.Bd6#
- 1...gxh5
- 2.Qxg5#
- 1...g1Q
- 2.Bd6#
- 2.Rc5#
- 1...g1R
- 2.Bd6#
- 2.Rc5#
- 1...Qg3
- 2.Bd6#
- 2.Rc5#
- 1...Qf4
- 2.Rc5#
- 2.Qxf4#
- 1...Rg3
- 2.Bd6#
- 2.Rc5#
- 2.Qf4#
- 1...Rg4
- 2.Rc5#
- 1...Rf5
- 2.Bd6#
- 2.Rc5#
- 1...Bd4
- 2.Bd6#
- 2.Qxg5#
- 2.Qxd4#
- 2.exd4#
- 1...Sf3
- 2.Bd6#
- 2.Rc5#
- 2.Qe4#
- 1...Sc4
- 2.Rc5#
- 2.Qxg5#
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Se6
- 2.Bd6#
- 1...Sd7
- 2.Bd6#
- 2.Qxg5#
- 1...Sh7
- 2.Bd6#
- 2.Rc5#
- 1...b2
- 2.Bc3#
- 2.Bd6#
- 2.Qxg5#
- 2.Qd4#
- 1...gxf6!
- threat
- 1.Qc4?
- threat
- 2.Bd6#
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...bxc2
- 2.Bd6#
- 1...Bd4
- 2.Bd6#
- 2.Qd5#
- 2.Qxd4#
- 2.exd4#
- 1...Se4
- 2.Qd5#
- 2.Qxe4#
- 1...Se6
- 2.Sd7#
- 2.Bd6#
- 2.Qd5#
- 1...Sd7
- 2.Sxd7#
- 2.Bd6#
- 2.Qd5#
- 1...b2
- 2.Bc3#
- 2.Bd6#
- 2.Qc3#
- 2.Qd4#
- 1...Sxc4!
- threat
- 1.Sxg7?
- Keys
- 1.Sf4!
- threat
- 2.Sd3#
- 1...Qxf4
- 2.Qxf4#
- 1...Rg4
- 2.Bd6#
- 1...Sf3
- 2.Sc4#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- Q(e);N_GUARD::QAB1(F)
- Q(e);N_GUARD,P_PINB(E)::QAB1(F),XQ(e)
- R(i);S_CUTQ(e)::QAB1(F)
- B(a);N_GUARD::B(E),XB(a)
- S(c);N_GUARD::QAR1(F)
- S(c);N_GUARD::QAR1(F),XS(c)
- S(m);SBLOCK::B(E)
- Tries
- Try
- S(G);XP(l)
- Threat
- B(E)
- Vars
- Q(e);N_GUARD,P_PINB(E)::QAB1(F),XQ(e)
- R(i);OGATE,P_PINB(E)::QAB1(F)
- S(c);N_GUARD::QAR1(F)
- S(c);N_GUARD::QAR1(F),XS(c)
- Refutation
- P(k);
- Try
- S(H);CHECK
- Vars
- S(c);XS(H)::QAR1(F)
- Refutation
- K(h);P-FLIGHT
- Try
- R(B);XS(c)
- Threat
- DUALS(3)
- Vars
- R(i);P_PINB(E)::R1(B)
- Refutation
- P(f);XB(A)
- Try
- R(B);
- Threat
- DUALS(3)
- Vars
- P(f);XB(A)::B(E)
- P(j);XS(G)::QAR2(F),XR(i)
- R(i);P_PINB(E)::R(I)
- S(c);N_GUARD::QAR1(F),XS(c)
- S(m);::B(E)
- Refutation
- P(l);XR(B)
- Try
- Q(F);
- Threat
- DUALS(4)
- Vars
- P(f);XB(A)::B(E)
- Refutation
- S(c);XQ(F)
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- Q(e);OGATE,P_PINB(E),XS(G)::QAB1(F),XQ(e)
- R(i);::B(E)
- S(c);N_GUARD::S(H)
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).