MESON Chess Problem Database
Problem Display
PID: 212391 (3r4/1p3p1p/6pK/1Q1Np3/N2knn1R/2p2R2/1P6/3r4 w - - 0 1)
Moser, Hans
Schach-Echo, 1954
#2
7 + 11
| 15148 | Sadier Collection | 2020 |
| 3713 | Snap | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Qb4#
- 1...Sd2
- 2.Qd3#
- 1...Se2
- 2.Qc5#
- 1...Sg2
- 2.Qc5#
- 2.bxc3#
- 1...Sd3
- 2.bxc3#
- 1...Sh3
- 2.Qc5#
- 2.bxc3#
- 1...Sxd5
- 2.Qc5#
- 1...Sh5
- 2.Qc5#
- 2.bxc3#
- 1...Se6
- 2.bxc3#
- 1...Rxd5
- Tries
- 1.Se3?
- threat
- 2.Sc2#
- 2.Qc4#
- 1...Sf2
- 2.Qc4#
- 1...Sg3
- 2.Qc4#
- 1...Sc5
- 2.Qc4#
- 1...Sg5
- 2.Qc4#
- 1...Sd6
- 2.Qd5#
- 1...Sf6
- 2.Qc4#
- 1...Rc8
- 2.Sc2#
- 1...Rc1
- 2.Qc4#
- 1...Rd2
- 2.Qc4#
- 1...c2
- 2.Sxc2#
- 2.Qc4#
- 1...Sd2!
- threat
- 1.Sxf4?
- threat
- 2.Se2#
- 2.Qb4#
- 1...Sd2
- 2.Se2#
- 2.Se6#
- 2.Qd3#
- 1...Sc5
- 2.Qb4#
- 1...Sd6
- 2.Se2#
- 2.Se6#
- 2.Qd5#
- 1...Rc8
- 2.Se2#
- 2.Qd5#
- 1...Re1
- 2.Rd3#
- 2.Qd3#
- 2.Qb4#
- 1...Rd2
- 2.Qb4#
- 1...exf4!
- threat
- 1.Sdb6?
- threat
- 2.Qc4#
- 2.Qb4#
- 1...Sd2
- 2.Qd3#
- 1...Sd6
- 2.Qd5#
- 1...Sd3
- 2.Qc4#
- 2.bxc3#
- 1...Sd5
- 2.Qc4#
- 2.Qc5#
- 1...Rc8!
- threat
- 1.Se7?
- threat
- 2.Qb4#
- 1...Sd2
- 2.Qd3#
- 1...Sd6
- 2.Qd5#
- 1...Sd3
- 2.bxc3#
- 1...Sd5
- 2.Qc5#
- 1...Rc8!
- threat
- 1.Rd3+?
- 1...Sxd3
- 2.bxc3#
- 1...Rxd3!
- 1...Sxd3
- 1.Rfxf4?
- threat
- 2.Rxe4#
- 2.bxc3#
- 1...Rxd5
- 2.Rxe4#
- 1...cxb2
- 2.Rxe4#
- 1...Rc8
- 2.Rxe4#
- 1...Rc1
- 2.Rxe4#
- 1...Re1
- 2.bxc3#
- 1...Rd3
- 2.Rxe4#
- 2.Qc5#
- 1...c2
- 2.Rxe4#
- 1...f5
- 2.bxc3#
- 1...exf4!
- threat
- 1.Se3?
- Keys
- 1.Sc7!
- threat
- 2.Qb4#
- 1...Sd2
- 2.Qd3#
- 1...Sd6
- 2.Qd5#
- 1...Sd3
- 2.bxc3#
- 1...Sd5
- 2.Qc5#
- threat
- 1.Sc7!
This anticipates 279229(1955)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(k);SBLOCK,XS(F)::QAR2(E)
- S(d);P_SPINS(e),S_CUTR(a)::QAR1(E)
- S(e);P_SPINS(d)::QAB1(E)
- S(e);P_SPINS(d)::P(A),XP(b)
- S(e);P_SPINS(d),XS(F)::QAB1(E)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(d);P_SPINS(e)::QAR1(E)
- S(d);P_SPINS(e),S_CUTR(k)::QAR1(E)
- R(k);::S(F)
- R(a);::QAR1(E)
- Refutation
- S(d);P_SPINS(e)
- Try
- S(F);XS(e)
- Threat
- DUALS(2)
- Vars
- S(d);::QAR2(E)
- R(a);::QAR2(E)
- Refutation
- P(f);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(d);P_SPINS(e),S_CUTR(a)::QAR1(E)
- S(d);P_SPINS(e),S_CUTR(k)::QAR1(E)
- Refutation
- R(k);
- Try
- S(F);
- Threat
- QAR2(E)
- Vars
- S(d);P_SPINS(e),S_CUTR(a)::QAR1(E)
- S(d);P_SPINS(e),S_CUTR(k)::QAR1(E)
- S(e);P_SPINS(d)::P(A),XP(b)
- S(e);P_SPINS(d)::QAB1(E)
- Refutation
- R(k);
- Try
- R(B);CHECK
- Vars
- S(e);P_SPINS(d),XR(B)::P(A),XP(b)
- Refutation
- R(a);XR(B)
- Try
- R(B);P_PINS(d),XS(e)
- Threat
- DUALS(2)
- Vars
- R(k);XS(F)::R1(B),XS(d)
- P(b);XP(A)::R1(B),XS(d)
- R(k);::R1(B),XS(d)
- R(a);::R1(B),XS(d)
- R(a);::P(A),XP(b)
- P(b);::R1(B),XS(d)
- P(i);::P(A),XP(b)
- Refutation
- P(f);N_SPINS(d),XR(B)
- Try
- Actual
- S(F);
- Threat
- QAR2(E)
- Vars
- S(d);P_SPINS(e),S_CUTR(a)::QAR1(E)
- S(d);P_SPINS(e),S_CUTR(k)::QAR1(E)
- S(e);P_SPINS(d)::P(A),XP(b)
- S(e);P_SPINS(d)::QAB1(E)
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).