MESON Chess Problem Database
Problem Display
PID: 67223 (8/2Q2p2/1P2pNnK/7p/2BP1R1P/4k2p/R3p2P/4N1n1 w - - 0 1)
Shanshin, Valery Yurevich
Phenix, 1999
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Sf3
- 2.Rxe2#
- 1...Sxh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...e5
- 2.Sd5#
- 1...Sf3
- Tries
- 1.Kg5?
- 1...Sxf4
- 2.Qxf4#
- 1...Sxh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...e5
- 2.Sd5#
- 1...Sf3+!
- 1...Sxf4
- 1.Kxh5?
- threat
- 2.Sg4#
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.Sd5#
- 1...Sxf4+!
- threat
- 1.Kg7?
- 1...Sxh4
- 2.Qe5#
- 1...Sf3
- 2.Rxe2#
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.Sd5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Sxf4!
- 1...Sxh4
- 1.Bd3?
- threat
- 2.Qc1#
- 1...Sf3
- 2.Rxe2#
- 1...Sxf4!
- threat
- 1.Bb5?
- threat
- 2.Qc1#
- 1...Sf3
- 2.Rxe2#
- 1...Sxf4!
- threat
- 1.Ba6?
- threat
- 2.Qc1#
- 1...Sf3
- 2.Rxe2#
- 1...Sxf4!
- threat
- 1.Rb2?
- 1...Sxh4
- 2.Qe5#
- 1...Sf3
- 2.Rxe2#
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.Sd5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Sxf4!
- 1...Sxh4
- 1.Rc2?
- 1...Sxh4
- 2.Qe5#
- 1...Sf3
- 2.Rxe2#
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.Sd5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Sxf4!
- 1...Sxh4
- 1.Rf3+?
- 1...Kxd4
- 2.Sc2#
- 2.Rd2#
- 2.Rd3#
- 1...Sxf3!
- 1...Kxd4
- 1.Qd6?
- 1...Sxh4
- 2.Qe5#
- 1...Sf3
- 2.Rxe2#
- 2.Rxf3#
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.Sd5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Sxf4!
- 1...Sxh4
- 1.Qb8?
- 1...Sxh4
- 2.Qe5#
- 1...Sf3
- 2.Rxe2#
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.Sd5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Sxf4!
- 1...Sxh4
- 1.Qc6?
- threat
- 2.Qe4#
- 1...Kxf4
- 2.Qe4#
- 1...Sf3
- 2.Qxf3#
- 1...Sxf4!
- threat
- 1.Qb7?
- threat
- 2.Qe4#
- 1...Kxf4
- 2.Qe4#
- 1...Sf3
- 2.Qxf3#
- 1...Sxf4!
- threat
- 1.d5?
- 1...Sxf4
- 2.Qc5#
- 1...Sxh4
- 2.Qe5#
- 1...exd5
- 2.Sxd5#
- 1...Sf3
- 2.Rxe2#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...e5!
- 1...Sxf4
- 1.b7?
- 1...Sxh4
- 2.Qe5#
- 1...Sf3
- 2.Rxe2#
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.Sd5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Sxf4!
- 1...Sxh4
- 1.Kg5?
- Keys
- 1.Qc5!
- 1...Kxf4
- 2.Qg5#
- 1...Sxf4
- 2.d5#
- 1...Sxh4
- 2.Qe5#
- 1...Sf3
- 2.Rxf3#
- 1...Se5
- 2.Qxe5#
- 1...Se7
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...e5
- 2.Sd5#
- 1...Kxf4
- 1.Qc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R1(B),XP(b)
- S(g);N_GUARD,XP(G)::QAR2(K)
- S(g);N_GUARD::QAR2(K),XS(g)
- S(g);N_GUARD::QAR2(K)
- P(f);N_GUARD::S(I)
- Tries
- Try
- K(J);S_FLIGHT
- Vars
- S(g);OGATE,XR(F)::QAB1(K),XS(g)
- S(g);N_GUARD,XP(G)::QAR2(K)
- S(g);N_GUARD::QAR2(K),XS(g)
- S(g);N_GUARD::QAR2(K)
- P(f);N_GUARD::S(I)
- Refutation
- S(a);CHECK
- Try
- K(J);P-FLIGHT,XP(e)
- Threat
- S(I)
- Vars
- S(g);N_GUARD::QAR2(K),XS(g)
- P(f);N_GUARD::S(I)
- Refutation
- S(g);CHECK,XR(F)
- Try
- K(J);S_FLIGHT
- Vars
- S(g);N_GUARD,XP(G)::QAR2(K)
- S(a);N_GUARD::R1(B),XP(b)
- S(g);N_GUARD::QAR2(K),XS(g)
- P(f);N_GUARD::S(I)
- S(g);N_GUARD::QAR2(K)
- Refutation
- S(g);XR(F)
- Try
- B(D);
- Threat
- QAB(K)
- Vars
- S(a);N_GUARD::R1(B),XP(b)
- Refutation
- S(g);XR(F)
- Try
- B(D);
- Threat
- QAB(K)
- Vars
- S(a);N_GUARD::R1(B),XP(b)
- Refutation
- S(g);XR(F)
- Try
- B(D);
- Threat
- QAB(K)
- Vars
- S(a);N_GUARD::R1(B),XP(b)
- Refutation
- S(g);XR(F)
- Try
- R(B);
- Vars
- S(g);N_GUARD,XP(G)::QAR2(K)
- S(a);N_GUARD::R1(B),XP(b)
- S(g);N_GUARD::QAR2(K),XS(g)
- P(f);N_GUARD::S(I)
- S(g);N_GUARD::QAR2(K)
- Refutation
- S(g);XR(F)
- Try
- R(B);
- Vars
- S(g);N_GUARD,XP(G)::QAR2(K)
- S(a);N_GUARD::R1(B),XP(b)
- S(g);N_GUARD::QAR2(K),XS(g)
- P(f);N_GUARD::S(I)
- S(g);N_GUARD::QAR2(K)
- Refutation
- S(g);XR(F)
- Try
- R(F);CHECK
- Refutation
- S(a);XR(F)
- Try
- Q(K);
- Vars
- S(g);N_GUARD,XP(G)::QAR2(K)
- S(g);N_GUARD::QAR2(K),XS(g)
- P(f);N_GUARD::S(I)
- S(g);N_GUARD::QAR2(K)
- Refutation
- S(g);XR(F)
- Try
- Q(K);
- Vars
- S(g);N_GUARD,XP(G)::QAR2(K)
- S(a);N_GUARD::R1(B),XP(b)
- S(g);N_GUARD::QAR2(K),XS(g)
- P(f);N_GUARD::S(I)
- S(g);N_GUARD::QAR2(K)
- Refutation
- S(g);XR(F)
- Try
- Q(K);
- Threat
- QAR1(K)
- Vars
- K(c);S_FLIGHT,XR(F)::QAR1(K)
- S(a);N_GUARD::QAR1(K),XS(a)
- Refutation
- S(g);XR(F)
- Try
- Q(K);
- Threat
- QAR1(K)
- Vars
- K(c);S_FLIGHT,XR(F)::QAR1(K)
- S(a);N_GUARD::QAR1(K),XS(a)
- Refutation
- S(g);XR(F)
- Try
- P(E);
- Vars
- S(g);SBLOCK,XR(F)::QAB(K)
- S(g);N_GUARD,XP(G)::QAR2(K)
- P(f);XP(E)::S(I),XP(f)
- S(a);N_GUARD::R1(B),XP(b)
- S(g);N_GUARD::QAR2(K),XS(g)
- S(g);N_GUARD::QAR2(K)
- Refutation
- P(f);
- Try
- P(H);
- Vars
- S(g);N_GUARD,XP(G)::QAR2(K)
- S(a);N_GUARD::R1(B),XP(b)
- S(g);N_GUARD::QAR2(K),XS(g)
- P(f);N_GUARD::S(I)
- S(g);N_GUARD::QAR2(K)
- Refutation
- S(g);XR(F)
- Try
- Actual
- Q(K);
- Vars
- K(c);OGATEB,S_FLIGHT,XR(F)::QAB1(K)
- S(g);SBLOCK,XR(F)::QAB(K)+P(E)
- S(g);N_GUARD,XP(G)::QAR2(K)
- S(a);N_GUARD::R1(F),XS(a)
- S(g);N_GUARD::QAR2(K),XS(g)
- S(g);N_GUARD::QAR2(K)
- P(f);N_GUARD::S(I)
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).