MESON Chess Problem Database
Problem Display
PID: 198809 (BQR5/8/p3P1p1/P2P1pP1/K2krN1N/p2Pn2p/4PP1B/4n3 w - - 0 1)
Vesin, Nikola
Comm., Teplitz-Schonauer Congress Book, 1921
#2
14 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Qxf4#
- 1...Re5
- 2.Qa7#
- 2.Qb6#
- 1...Rxe6
- 2.Sxe6#
- 1...S1c2
- 2.Sf3#
- 1...S1g2
- 2.Sf3#
- 1...Sxd3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sd1
- 2.Rc4#
- 1...Sf1
- 2.Rc4#
- 1...S3c2
- 2.Rc4#
- 1...S3g2
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sg4
- 2.Rc4#
- 1...Sxd5
- 2.Rc4#
- 1...a2
- 2.Qb2#
- 1...Rxf4
- Tries
- 1.Kb3?
- 1...Rxf4
- 2.Qxf4#
- 1...Rxe6
- 2.Sxe6#
- 1...Sxd3
- 2.Sf3#
- 1...Sxd5
- 2.Rc4#
- 1...Re5
- 2.Qa7#
- 2.Qb6#
- 1...S1c2
- 2.Sf3#
- 1...S1g2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sd1
- 2.Rc4#
- 1...Sf1
- 2.Rc4#
- 1...S3c2
- 2.Rc4#
- 1...S3g2
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sg4
- 2.Rc4#
- 1...a2!
- 1...Rxf4
- 1.Sfxg6?
- threat
- 2.Qa7#
- 2.Qb6#
- 1...Sxd3
- 2.Sf3#
- 1...Sxd5
- 2.Sxf5#
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Rxe6!
- threat
- 1.Sxf5+?
- 1...Sxf5
- 2.Rc4#
- 1...gxf5!
- 1...Sxf5
- 1.Shxg6?
- threat
- 2.Qa7#
- 2.Qb6#
- 1...Rxe6
- 2.Sxe6#
- 1...Sxd5
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sxd3!
- threat
- 1.Bg1?
- 1...Rxf4
- 2.Qxf4#
- 2.fxe3#
- 1...Rxe6
- 2.Sxe6#
- 1...Sxd3
- 2.Sf3#
- 1...Sxd5
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Re5
- 2.Qa7#
- 2.Qb6#
- 1...S1c2
- 2.Sf3#
- 1...S1g2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sd1
- 2.Rc4#
- 1...Sf1
- 2.Rc4#
- 1...S3c2
- 2.Rc4#
- 1...S3g2
- 2.Rc4#
- 1...Sg4
- 2.Rc4#
- 1...a2
- 2.Qb2#
- 1...h2!
- 1...Rxf4
- 1.Bg3?
- 1...Rxf4
- 2.Qxf4#
- 1...Rxe6
- 2.Sxe6#
- 1...Sxd3
- 2.Sf3#
- 1...Sxd5
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Re5
- 2.Qa7#
- 2.Qb6#
- 1...S1c2
- 2.Sf3#
- 1...S1g2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sd1
- 2.Rc4#
- 1...Sf1
- 2.Rc4#
- 1...S3c2
- 2.Rc4#
- 1...S3g2
- 2.Rc4#
- 1...Sg4
- 2.Rc4#
- 1...a2
- 2.Qb2#
- 1...h2!
- 1...Rxf4
- 1.Bb7?
- 1...Rxf4
- 2.Qxf4#
- 1...Rxe6
- 2.Sxe6#
- 1...Sxd3
- 2.Sf3#
- 1...Sxd5
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Re5
- 2.Qa7#
- 1...S1c2
- 2.Sf3#
- 1...S1g2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sd1
- 2.Rc4#
- 1...Sf1
- 2.Rc4#
- 1...S3c2
- 2.Rc4#
- 1...S3g2
- 2.Rc4#
- 1...Sg4
- 2.Rc4#
- 1...a2!
- 1...Rxf4
- 1.Qd6?
- 1...Rxf4
- 2.Qxf4#
- 1...Rxe6
- 2.Sxe6#
- 1...Sxd3
- 2.Sf3#
- 1...Sxd5
- 2.Rc4#
- 2.Qxd5#
- 1...Sc4
- 2.Rxc4#
- 1...Re5
- 2.Qc5#
- 2.Qb6#
- 1...S1c2
- 2.Sf3#
- 1...S1g2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sd1
- 2.Rc4#
- 1...Sf1
- 2.Rc4#
- 1...S3c2
- 2.Rc4#
- 1...S3g2
- 2.Rc4#
- 1...Sg4
- 2.Rc4#
- 1...a2!
- 1...Rxf4
- 1.Qb4+?
- 1...Ke5
- 2.Sfxg6#
- 2.Shxg6#
- 1...Sc4!
- 1...Ke5
- 1.fxe3+?
- 1...Rxe3
- 2.Rc4#
- 1...Kxe3+!
- 1...Rxe3
- 1.e7?
- 1...Rxf4
- 2.Qxf4#
- 1...Sxd3
- 2.Sf3#
- 1...Sxd5
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...a2
- 2.Qb2#
- 1...Re5
- 2.Qa7#
- 2.Qb6#
- 1...Re6
- 2.Sxe6#
- 1...S1c2
- 2.Sf3#
- 1...S1g2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sd1
- 2.Rc4#
- 1...Sf1
- 2.Rc4#
- 1...S3c2
- 2.Rc4#
- 1...S3g2
- 2.Rc4#
- 1...Sg4
- 2.Rc4#
- 1...Rxe7!
- 1...Rxf4
- 1.Kb3?
- Keys
- 1.Rc7!
- 1...Ke5+
- 2.Rc4#
- 1...Rxf4
- 2.Qh8#
- 1...Rxe6
- 2.Sxe6#
- 1...Sxd3
- 2.Sf3#
- 1...Sxd5
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Re5
- 2.Qa7#
- 2.Qb6#
- 1...S1c2
- 2.Sf3#
- 1...S1g2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sd1
- 2.Rc4#
- 1...Sf1
- 2.Rc4#
- 1...S3c2
- 2.Rc4#
- 1...S3g2
- 2.Rc4#
- 1...Sg4
- 2.Rc4#
- 1...a2
- 2.Qb2#
- 1...Ke5+
- 1.Rc7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(f);OGATE,XS(F)::QAR2(M),XR(f)
- R(f);XP(K)::S(F),XR(f)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD,XP(D)::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::R1(N)
- S(c);N_GUARD::R1(N),XS(c)
- S(c);N_GUARD,XP(I)::R1(N)
- P(b);N_GUARD::QAB(M)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- R(f);OGATE,XS(F)::QAR2(M),XR(f)
- R(f);XP(K)::S(F),XR(f)
- S(a);N_GUARD,XP(D)::S(G)
- S(c);N_GUARD,XP(I)::R1(N)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::R1(N)
- S(c);N_GUARD::R1(N),XS(c)
- Refutation
- P(b);
- Try
- S(F);XP(i)
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD,XP(D)::S(G)
- S(c);N_GUARD::R1(N),XS(c)
- Refutation
- R(f);XP(K)
- Try
- S(G);CHECK,XP(g)
- Vars
- S(c);XS(G)::R1(N)
- Refutation
- P(i);XS(G)
- Try
- S(G);XP(i)
- Threat
- DUALS(2)
- Vars
- R(f);XP(K)::S(F),XR(f)
- S(c);N_GUARD,XP(I)::R1(N)
- S(c);N_GUARD::R1(N),XS(c)
- Refutation
- S(a);XP(D)
- Try
- B(C);
- Vars
- R(f);XP(K)::S(F),XR(f)
- S(a);N_GUARD,XP(D)::S(G)
- S(c);N_GUARD,XP(I)::R1(N)
- S(c);N_GUARD::R1(N),XS(c)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::R1(N)
- P(b);N_GUARD::QAB(M)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- R(f);OGATE,XS(F)::QAR2(M),XR(f)
- R(f);XP(K)::S(F),XR(f)
- S(a);N_GUARD,XP(D)::S(G)
- S(c);N_GUARD,XP(I)::R1(N)
- S(c);N_GUARD::R1(N),XS(c)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::R1(N)
- P(b);N_GUARD::QAB(M)
- Refutation
- P(d);
- Try
- B(L);
- Vars
- R(f);OGATE,XS(F)::QAR2(M),XR(f)
- R(f);XP(K)::S(F),XR(f)
- S(a);N_GUARD,XP(D)::S(G)
- S(c);N_GUARD,XP(I)::R1(N)
- S(c);N_GUARD::R1(N),XS(c)
- R(f);SBLOCK::QAB(M)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::R1(N)
- Refutation
- P(b);
- Try
- Q(M);
- Vars
- R(f);OGATE,XS(F)::QAR2(M),XR(f)
- R(f);XP(K)::S(F),XR(f)
- S(a);N_GUARD,XP(D)::S(G)
- S(c);N_GUARD::R1(N),XS(c)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::R1(N)
- Refutation
- P(b);
- Try
- Q(M);CHECK
- Refutation
- S(c);P_SPINS(c)
- Try
- P(B);CHECK,XS(c)
- Vars
- R(f);SBLOCK,XP(B)::R1(N)
- Refutation
- K(e);CHECK,S_FLIGHT,XP(B)
- Try
- P(K);
- Vars
- R(f);OGATE,XS(F)::QAR2(M),XR(f)
- S(a);N_GUARD,XP(D)::S(G)
- S(c);N_GUARD,XP(I)::R1(N)
- S(c);N_GUARD::R1(N),XS(c)
- P(b);N_GUARD::QAB(M)
- R(f);N_GUARD::S(F),XR(f)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::R1(N)
- Refutation
- R(f);XP(K)
- Try
- Actual
- R(N);
- Vars
- K(e);CHECK,S_FLIGHT::QAB(M)+R(N)
- R(f);N_GUARD,XS(F)::QAB(M)
- R(f);XP(K)::S(F),XR(f)
- S(a);N_GUARD,XP(D)::S(G)
- S(c);N_GUARD,XP(I)::R1(N)
- S(c);N_GUARD::R1(N),XS(c)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::R1(N)
- P(b);N_GUARD::QAB(M)
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).