MESON Chess Problem Database
Problem Display
PID: 198131 (2n5/2B1N3/2P2p2/p2B1Pq1/Rn4p1/2Ppk2p/4pRpN/4Q1K1 w - - 0 1)
Neukomm, Gyula (Julius) R
HM., Surrey Weekly Press, 1920
#2
11 + 11
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qf4
- 2.Bxf4#
- 1...Qh4
- 2.Bf4#
- 1...Qh6
- 2.Sxg4#
- 1...Qxf5
- 2.Sxf5#
- 1...Qh5
- 2.Bf4#
- 1...Qg6
- 2.Bf4#
- 1...Qg7
- 2.Bf4#
- 1...Qg8
- 2.Bf4#
- 1...Sa2
- 2.Re4#
- 1...Sc2
- 2.Re4#
- 1...Sxd5
- 2.Sxd5#
- 1...Sa6
- 2.Re4#
- 1...Sxc6
- 2.Re4#
- 1...Sb6
- 2.Bxb6#
- 1...Sd6
- 2.Bb6#
- 1...Sa7
- 2.Bb6#
- 1...Sxe7
- 2.Bb6#
- 1...d2
- 2.Qxe2#
- 1...g3
- 2.Rf3#
- 1...Qf4
- Tries
- 1.Sf3?
- threat
- 2.Qd2#
- 1...gxf3
- 2.Rxf3#
- 1...d2
- 2.Qxd2#
- 2.Qxe2#
- 1...h2+!
- threat
- 1.Sxc8?
- threat
- 2.Bb6#
- 1...Sxc6
- 2.Re4#
- 1...d2
- 2.Qxe2#
- 1...Qf4
- 2.Bxf4#
- 1...Sc2
- 2.Re4#
- 1...Sa6
- 2.Re4#
- 1...Sxd5!
- threat
- 1.Bxg2?
- threat
- 2.Sf1#
- 1...d2
- 2.Qxe2#
- 1...hxg2!
- threat
- 1.Be5?
- threat
- 2.Bd4#
- 1...Sxd5
- 2.Sxd5#
- 1...Sxc6
- 2.Re4#
- 1...d2
- 2.Qxe2#
- 1...Qf4
- 2.Bxf4#
- 1...Sc2
- 2.Re4#
- 1...fxe5!
- threat
- 1.Bd6?
- threat
- 2.Bc5#
- 1...Sxc6
- 2.Re4#
- 1...d2
- 2.Qxe2#
- 1...Qf4
- 2.Bxf4#
- 1...Sc2
- 2.Re4#
- 1...Sa6
- 2.Re4#
- 1...Sxd6!
- threat
- 1.Bb8?
- 1...Qxf5
- 2.Sxf5#
- 1...Sxd5
- 2.Sxd5#
- 1...Sxc6
- 2.Re4#
- 1...Sxe7
- 2.Ba7#
- 1...d2
- 2.Qxe2#
- 1...Qf4
- 2.Bxf4#
- 1...Qh4
- 2.Bf4#
- 1...Qh6
- 2.Sxg4#
- 1...Qh5
- 2.Bf4#
- 1...Qg6
- 2.Bf4#
- 1...Qg7
- 2.Bf4#
- 1...Qg8
- 2.Bf4#
- 1...Sa2
- 2.Re4#
- 1...Sc2
- 2.Re4#
- 1...Sa6
- 2.Re4#
- 1...Sd6
- 2.Ba7#
- 1...Sa7
- 2.Bxa7#
- 1...g3
- 2.Rf3#
- 1...Sb6!
- 1...Qxf5
- 1.Rxb4?
- threat
- 2.Re4#
- 1...Qxf5
- 2.Sxf5#
- 1...d2
- 2.Qxe2#
- 1...Qf4
- 2.Bxf4#
- 1...Sd6
- 2.Bb6#
- 1...axb4!
- threat
- 1.Sf3?
- Keys
- 1.Rf1!
- 1...gxf1Q+
- 2.Sxf1#
- 1...gxf1R+
- 2.Sxf1#
- 1...Qxf5
- 2.Sxf5#
- 1...Sxd5
- 2.Sxd5#
- 1...Sxc6
- 2.Re4#
- 1...Sxe7
- 2.Bb6#
- 1...gxf1S
- 2.Sxf1#
- 1...gxf1B
- 2.Sxf1#
- 1...d2
- 2.Qg3#
- 1...Sb6
- 2.Bxb6#
- 1...Qf4
- 2.Bxf4#
- 1...Qh4
- 2.Bf4#
- 1...Qh6
- 2.Sxg4#
- 1...Qh5
- 2.Bf4#
- 1...Qg6
- 2.Bf4#
- 1...Qg7
- 2.Bf4#
- 1...Qg8
- 2.Bf4#
- 1...Sa2
- 2.Re4#
- 1...Sc2
- 2.Re4#
- 1...Sa6
- 2.Re4#
- 1...Sd6
- 2.Bb6#
- 1...Sa7
- 2.Bb6#
- 1...g3
- 2.Rf3#
- 1...gxf1Q+
- 1.Rf1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(i);N_GUARD::B(J),XQ(i)
- Q(i);N_GUARD::B(J)
- Q(i);N_GUARD::S(D),XP(g)
- Q(i);XP(H)::S(K),XQ(i)
- S(f);OGATE::R1(F)
- S(f);XB(G)::S(K),XS(f)
- S(f);OGATE,XP(I)::R1(F)
- S(k);N_GUARD::B(J),XS(k)
- S(k);N_GUARD::B(J)
- S(k);N_GUARD,XS(K)::B(J)
- P(c);N_GUARD::QAR1(A),XP(a)
- P(g);N_GUARD::R1(C)
- Tries
- Try
- S(D);
- Threat
- QAB1(A)
- Vars
- P(g);OGATE,XS(D)::R1(C),XP(g)
- Refutation
- P(e);CHECK
- Try
- S(K);XS(k)
- Threat
- B(J)
- Vars
- S(f);OGATE,XP(I)::R1(F)
- P(c);N_GUARD::QAR1(A),XP(a)
- Q(i);N_GUARD::B(J),XQ(i)
- S(f);OGATE::R1(F)
- Refutation
- S(f);XB(G)
- Try
- B(G);XP(b)
- Threat
- S(D)
- Vars
- P(c);N_GUARD::QAR1(A),XP(a)
- Refutation
- P(e);XB(G)
- Try
- B(J);
- Threat
- B(J)
- Vars
- S(f);XB(G)::S(K),XS(f)
- S(f);OGATE,XP(I)::R1(F)
- P(c);N_GUARD::QAR1(A),XP(a)
- Q(i);N_GUARD::B(J),XQ(i)
- S(f);OGATE::R1(F)
- Refutation
- P(j);XB(J)
- Try
- B(J);
- Threat
- B(J)
- Vars
- S(f);OGATE,XP(I)::R1(F)
- P(c);N_GUARD::QAR1(A),XP(a)
- Q(i);N_GUARD::B(J),XQ(i)
- S(f);OGATE::R1(F)
- Refutation
- S(k);XB(J)
- Try
- B(J);
- Vars
- Q(i);XP(H)::S(K),XQ(i)
- S(f);XB(G)::S(K),XS(f)
- S(f);OGATE,XP(I)::R1(F)
- S(k);N_GUARD,XS(K)::B(J)
- P(c);N_GUARD::QAR1(A),XP(a)
- Q(i);N_GUARD::B(J),XQ(i)
- Q(i);N_GUARD::B(J)
- Q(i);N_GUARD::S(D),XP(g)
- S(f);OGATE::R1(F)
- S(k);N_GUARD::B(J)
- S(k);N_GUARD::B(J),XS(k)
- P(g);N_GUARD::R1(C)
- Refutation
- S(k);
- Try
- R(F);XS(f)
- Threat
- R1(F)
- Vars
- Q(i);XP(H)::S(K),XQ(i)
- P(c);N_GUARD::QAR1(A),XP(a)
- Q(i);N_GUARD::B(J),XQ(i)
- S(k);N_GUARD::B(J)
- Refutation
- P(h);XR(F)
- Try
- Actual
- R(C);
- Vars
- P(b);CHECK,XR(C)::S(D),XQ(b)
- P(b);CHECK,XR(C)::S(D),XR(b)
- Q(i);XP(H)::S(K),XQ(i)
- S(f);XB(G)::S(K),XS(f)
- S(f);OGATE,XP(I)::R1(F)
- S(k);N_GUARD,XS(K)::B(J)
- P(b);XR(C)::S(D),XS(b)
- P(b);XR(C)::S(D),XB(b)
- P(c);SBLOCK::QAR2(A)
- S(k);N_GUARD::B(J),XS(k)
- Q(i);N_GUARD::B(J),XQ(i)
- Q(i);N_GUARD::B(J)
- Q(i);N_GUARD::S(D),XP(g)
- S(f);OGATE::R1(F)
- S(k);N_GUARD::B(J)
- P(g);N_GUARD::R1(C)
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).