MESON Chess Problem Database
Problem Display
PID: 48787 (8/7p/p1p2ppn/P1N2nR1/1pPk2p1/1P1Nq1B1/1P1pRQ2/3K4 w - - 0 1)
Schulz, Carl
3rd HM., BCPS 010. Ty., 1929-1930
#2
11 + 12
| 56 | The Problemist | 1930 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Re4#
- 1...Sxg3
- 2.Qxe3#
- 1...Sh4
- 2.Qxe3#
- 1...Sd6
- 2.Qxe3#
- 1...Se7
- 2.Qxe3#
- 1...Sg7
- 2.Qxe3#
- 1...Sf7
- 2.Rxg4#
- 1...Sg8
- 2.Rxg4#
- 1...fxg5
- 2.Be5#
- 1...Qxf2
- Tries
- 1.Se6+?
- 1...Ke4
- 2.Sdc5#
- 1...Kxd3!
- 1...Ke4
- 1.Bh2?
- 1...Qxf2
- 2.Re4#
- 1...fxg5
- 2.Be5#
- 1...Sg3
- 2.Qxe3#
- 1...Sh4
- 2.Qxe3#
- 1...Sd6
- 2.Qxe3#
- 1...Se7
- 2.Qxe3#
- 1...Sg7
- 2.Qxe3#
- 1...Sf7
- 2.Rxg4#
- 1...Sg8
- 2.Rxg4#
- 1...g3!
- 1...Qxf2
- 1.Bd6?
- 1...Qxf2
- 2.Re4#
- 1...Sxd6
- 2.Qxe3#
- 1...fxg5
- 2.Be5#
- 1...Sg3
- 2.Qxe3#
- 1...Sh4
- 2.Qxe3#
- 1...Se7
- 2.Qxe3#
- 1...Sg7
- 2.Qxe3#
- 1...Sf7
- 2.Rxg4#
- 1...Sg8
- 2.Rxg4#
- 1...g3!
- 1...Qxf2
- 1.Bc7?
- 1...Qxf2
- 2.Re4#
- 1...fxg5
- 2.Be5#
- 1...Sg3
- 2.Qxe3#
- 1...Sh4
- 2.Qxe3#
- 1...Sd6
- 2.Qxe3#
- 1...Se7
- 2.Qxe3#
- 1...Sg7
- 2.Qxe3#
- 1...Sf7
- 2.Rxg4#
- 1...Sg8
- 2.Rxg4#
- 1...g3!
- 1...Qxf2
- 1.Bb8?
- 1...Qxf2
- 2.Re4#
- 1...fxg5
- 2.Be5#
- 1...Sg3
- 2.Qxe3#
- 1...Sh4
- 2.Qxe3#
- 1...Sd6
- 2.Qxe3#
- 1...Se7
- 2.Qxe3#
- 1...Sg7
- 2.Qxe3#
- 1...Sf7
- 2.Rxg4#
- 1...Sg8
- 2.Rxg4#
- 1...g3!
- 1...Qxf2
- 1.Rxd2?
- 1...Sxg3
- 2.Sc1#
- 2.Se1#
- 2.Sxb4#
- 2.Sf4#
- 1...fxg5
- 2.Be5#
- 1...Sh4
- 2.Sc1#
- 2.Se1#
- 2.Sxb4#
- 2.Sf4#
- 1...Sd6
- 2.Sc1#
- 2.Se1#
- 2.Sxb4#
- 2.Sf4#
- 1...Se7
- 2.Sc1#
- 2.Se1#
- 2.Sxb4#
- 2.Sf4#
- 1...Sg7
- 2.Sc1#
- 2.Se1#
- 2.Sxb4#
- 2.Sf4#
- 1...Sf7
- 2.Rxg4#
- 1...Sg8
- 2.Rxg4#
- 1...Qxf2!
- 1...Sxg3
- 1.Rxe3?
- threat
- 2.Se6#
- 2.Re4#
- 2.Qf4#
- 1...Sxg3
- 2.Se6#
- 2.Re1#
- 2.Re2#
- 2.Rf3#
- 2.Rxg3#
- 2.Re4#
- 2.Ree5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...fxg5
- 2.Se6#
- 2.Be5#
- 2.Re4#
- 1...Sd6
- 2.Se6#
- 2.Re1#
- 2.Re2#
- 2.Rf3#
- 2.Re4#
- 2.Ree5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Sg7
- 2.Re1#
- 2.Re2#
- 2.Rf3#
- 2.Re4#
- 2.Ree5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 2.Qf4#
- 1...Sxe3+!
- threat
- 1.Rxf5?
- threat
- 2.Rf4#
- 2.Qxe3#
- 1...Qxf2
- 2.Bxf2#
- 2.Re4#
- 1...gxf5
- 2.Qxe3#
- 1...g5
- 2.Qxe3#
- 1...Sxf5!
- threat
- 1.Rxg6?
- 1...Qxf2
- 2.Re4#
- 1...Sxg3
- 2.Qxe3#
- 1...Sh4
- 2.Qxe3#
- 1...Sd6
- 2.Qxe3#
- 1...Se7
- 2.Qxe3#
- 1...Sg7
- 2.Qxe3#
- 1...Sf7
- 2.Rxg4#
- 1...Sg8
- 2.Rxg4#
- 1...hxg6!
- 1...Qxf2
- 1.Qg1?
- 1...Sxg3
- 2.Qxe3#
- 1...fxg5
- 2.Be5#
- 1...Qf2
- 2.Re4#
- 1...Sh4
- 2.Qxe3#
- 1...Sd6
- 2.Qxe3#
- 1...Se7
- 2.Qxe3#
- 1...Sg7
- 2.Qxe3#
- 1...Sf7
- 2.Rxg4#
- 1...Sg8
- 2.Rxg4#
- 1...Qxg1+!
- 1...Sxg3
- 1.Qf4+?
- 1...Qe4
- 2.Rxe4#
- 2.Qxe4#
- 1...Qxf4!
- 1...Qe4
- 1.Se6+?
- Keys
- 1.Sf4!
- threat
- 2.Sfe6#
- 1...Kxc5
- 2.Se6#
- 1...Ke5
- 2.Sfe6#
- 1...Sg7
- 2.Rxd2#
- 2.Qxe3#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(b);N_SPINQ(b),OGATE,XQ(D)::R1(C)
- S(f);N_GUARD,XB(G)::QAB1(D),XQ(b)
- S(f);N_GUARD::QAB1(D),XQ(b)
- S(k);N_GUARD::R(K),XP(e)
- P(i);N_GUARD,XR(K)::B(G)
- Tries
- Try
- S(J);CHECK
- Vars
- K(d);P-FLIGHT::S(F)
- Refutation
- K(d);N_SPINQ(b),P-FLIGHT,XS(F)
- Try
- B(G);
- Vars
- Q(b);N_SPINQ(b),OGATE,XQ(D)::R1(C)
- P(i);N_GUARD,XR(K)::B(G)
- S(f);N_GUARD::QAB1(D),XQ(b)
- S(k);N_GUARD::R(K),XP(e)
- Refutation
- P(e);
- Try
- B(G);
- Vars
- Q(b);N_SPINQ(b),OGATE,XQ(D)::R1(C)
- S(f);N_GUARD,XB(G)::QAB1(D),XQ(b)
- P(i);N_GUARD,XR(K)::B(G)
- S(f);N_GUARD::QAB1(D),XQ(b)
- S(k);N_GUARD::R(K),XP(e)
- Refutation
- P(e);
- Try
- B(G);
- Vars
- Q(b);N_SPINQ(b),OGATE,XQ(D)::R1(C)
- P(i);N_GUARD,XR(K)::B(G)
- S(f);N_GUARD::QAB1(D),XQ(b)
- S(k);N_GUARD::R(K),XP(e)
- Refutation
- P(e);
- Try
- B(G);
- Vars
- Q(b);N_SPINQ(b),OGATE,XQ(D)::R1(C)
- P(i);N_GUARD,XR(K)::B(G)
- S(f);N_GUARD::QAB1(D),XQ(b)
- S(k);N_GUARD::R(K),XP(e)
- Refutation
- P(e);
- Try
- R(C);XP(a)
- Vars
- P(i);N_GUARD,XR(K)::B(G)
- S(k);N_GUARD::R(K),XP(e)
- Refutation
- Q(b);N_SPINQ(b),XQ(D)
- Try
- R(C);XQ(b)
- Threat
- DUALS(3)
- Refutation
- S(f);CHECK,P_SPINS(f),XR(C)
- Try
- R(K);XS(f)
- Threat
- DUALS(2)
- Vars
- P(j);XR(K)::QAB1(D),XQ(b)
- P(j);::QAB1(D),XQ(b)
- Refutation
- S(k);XR(K)
- Try
- R(K);XP(j)
- Vars
- Q(b);N_SPINQ(b),OGATE,XQ(D)::R1(C)
- S(f);N_GUARD,XB(G)::QAB1(D),XQ(b)
- S(f);N_GUARD::QAB1(D),XQ(b)
- S(k);N_GUARD::R(K),XP(e)
- Refutation
- P(l);XR(K)
- Try
- Q(D);
- Vars
- S(f);N_GUARD,XB(G)::QAB1(D),XQ(b)
- P(i);N_GUARD,XR(K)::B(G)
- Q(b);OGATE::R1(C)
- S(f);N_GUARD::QAB1(D),XQ(b)
- S(k);N_GUARD::R(K),XP(e)
- Refutation
- Q(b);CHECK,N_SPINQ(b),XQ(D)
- Try
- Q(D);CHECK,N_PINQ(b)
- Refutation
- Q(b);XQ(D)
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- K(d);P_SPINS(f),S_FLIGHT,XS(J)::S(F)
- K(d);P_SPINS(f),S_FLIGHT::B(G)+S(F)
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).