MESON Chess Problem Database
Problem Display
PID: 229037 (6Rb/4Rn2/2N5/r4k1n/r1pQ3B/p2PPpp1/P7/K2B4 w - - 0 1)
Neiman, Moisei Borisovich
3rd HM., Shakhmaty, 1926
#2
10 + 10
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Qg4#
- 1...Bxd4+
- 2.Sxd4#
- 1...Sf4
- 2.e4#
- 1...Sf6
- 2.Qf4#
- 1...Sg7
- 2.Qe4#
- 1...Se5
- 2.Qe4#
- 1...Sg5
- 2.Rxg5#
- 1...Sd6
- 2.Rg5#
- 1...Sh6
- 2.Rg5#
- 1...Sd8
- 2.Rg5#
- 1...f2
- 2.Bg4#
- 1...c3
- 2.Qd7#
- 1...Re5
- Tries
- 1.Bxf3?
- threat
- 2.Be4#
- 2.Bg4#
- 1...Bxd4+
- 2.Sxd4#
- 1...Sg7
- 2.Qf6#
- 2.Qe4#
- 2.Qg4#
- 1...Re5
- 2.Bg4#
- 2.Qg4#
- 1...Sf6
- 2.Qf4#
- 1...Se5
- 2.Be4#
- 2.Qe4#
- 1...Sg5
- 2.Bg4#
- 2.Rxg5#
- 1...Sd6
- 2.Bg4#
- 2.Rg5#
- 1...Sh6
- 2.Be4#
- 2.Rg5#
- 1...Bg7!
- threat
- 1.Rxf7+?
- 1...Ke6
- 2.Sd8#
- 1...Sf6
- 2.Qe4#
- 2.Qg4#
- 2.Qd7#
- 1...Bf6!
- 1...Ke6
- 1.Rg7?
- threat
- 2.Qe4#
- 2.Qg4#
- 2.Qd7#
- 1...Sxg7
- 2.Qe4#
- 1...cxd3
- 2.Qd7#
- 1...Rd5
- 2.Qe4#
- 2.Qg4#
- 1...Re5
- 2.Qg4#
- 1...Ra7
- 2.Qe4#
- 2.Qg4#
- 1...Sf4
- 2.Qf6#
- 2.Qe4#
- 2.Qxf4#
- 2.e4#
- 1...Sf6
- 2.Qxf6#
- 2.Qf4#
- 1...Se5
- 2.Qe4#
- 1...Sg5
- 2.Rxg5#
- 1...Sd6
- 2.Rg5#
- 2.Qg4#
- 1...Sh6
- 2.Rg5#
- 2.Qe4#
- 2.Qd7#
- 1...Sd8
- 2.Rg5#
- 2.Qe4#
- 2.Qg4#
- 1...c3
- 2.Qd7#
- 1...Bxg7!
- threat
- 1.Qe5+?
- 1...Rxe5
- 2.Sd4#
- 1...Sxe5
- 2.Sd4#
- 1...Bxe5+!
- 1...Rxe5
- 1.Qf6+?
- 1...Sxf6
- 2.Sd4#
- 1...Bxf6+!
- 1...Sxf6
- 1.Qxh8?
- threat
- 2.Sd4#
- 2.Qh7#
- 1...Sxh8
- 2.Sd4#
- 1...cxd3
- 2.Qh7#
- 1...Sg5
- 2.Rxg5#
- 1...Rd5
- 2.Qh7#
- 1...Sf4
- 2.Sd4#
- 2.Qf6#
- 2.e4#
- 1...Sf6
- 2.Sd4#
- 2.Qxf6#
- 1...Se5
- 2.Sd4#
- 2.Rg5#
- 2.Qxh5#
- 1...c3
- 2.Qh7#
- 1...Sg7!
- threat
- 1.Bxf3?
- Keys
- 1.Bc2!
- threat
- 2.dxc4#
- 1...Bxd4+
- 2.Sxd4#
- 1...cxd3
- 2.Bxd3#
- 1...Re5
- 2.Qg4#
- 1...Sf4
- 2.e4#
- 1...Sf6
- 2.Qf4#
- 1...Se5
- 2.Qe4#
- 1...Sg5
- 2.Rxg5#
- 1...Sd6
- 2.Rg5#
- 1...c3
- 2.Qd7#
- threat
- 1.Bc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(f);N_PINQ(F)::QAB1(F)
- B(j);CHECK,XQ(F)::S(H),XB(j)
- S(h);SBLOCK::P(E)
- S(h);N_PINQ(F)::QAR1(F)
- S(h);N_PINQ(F)::QAB1(F)
- S(i);N_PINQ(F)::QAB1(F)
- S(i);N_GUARD::R1(J),XS(i)
- S(i);N_GUARD::R1(J)
- P(b);OGATE::B(B)
- P(e);N_PINQ(F)::QAB(F)
- Tries
- Try
- B(B);XP(b)
- Threat
- DUALS(2)
- Vars
- B(j);CHECK,XQ(F)::S(H),XB(j)
- S(h);N_PINQ(F)::QAR1(F)
- Refutation
- B(j);
- Try
- R(I);CHECK,XS(i)
- Vars
- K(g);S_FLIGHT::S(H)
- Refutation
- B(j);P_SPINB(j)
- Try
- R(J);N_SPINQ(F)
- Threat
- DUALS(3)
- Vars
- S(h);XR(J)::QAB1(F)
- P(e);XP(D)::QAB(F)
- R(f);::QAB1(F)
- S(i);::QAB1(F)
- S(i);N_GUARD::R1(J),XS(i)
- P(e);::QAB(F)
- Refutation
- B(j);P_PINQ(F),XR(J)
- Try
- Q(F);CHECK
- Vars
- R(f);XQ(F)::S(H)
- S(i);XQ(F)::S(H)
- Refutation
- B(j);CHECK,XQ(F)
- Try
- Q(F);CHECK
- Vars
- S(h);XQ(F)::S(H)
- Refutation
- B(j);CHECK,XQ(F)
- Try
- Q(F);N_SPINQ(F),XB(j)
- Threat
- DUALS(2)
- Vars
- S(i);XQ(F)::S(H)
- P(e);XP(D)::QAB(F)
- S(i);N_GUARD::R1(J),XS(i)
- R(f);::QAB(F)
- P(e);::QAB(F)
- Refutation
- S(h);
- Try
- Actual
- B(B);
- Threat
- B(B)+P(D),XP(e)
- Vars
- B(j);CHECK,XQ(F)::S(H),XB(j)
- P(e);OGATE,P_SPINP(e),XP(D)::B(B),XP(e)
- R(f);N_PINQ(F)::QAB1(F)
- S(h);SBLOCK::P(E)
- S(h);N_PINQ(F)::QAR1(F)
- S(i);N_PINQ(F)::QAB1(F)
- S(i);N_GUARD::R1(J),XS(i)
- S(i);N_GUARD::R1(J)
- P(e);N_PINQ(F)::QAB(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).