MESON Chess Problem Database
Problem Display
PID: 52809 (2r1R3/3nQR2/4n3/2P2r2/8/k7/N7/K2B4 w - - 0 1)
Grass, Leo
2nd HM., Neue Leipziger Zeitung, 1936
#2
7 + 5
| 23 | Die Schwalbe | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rf3
- 2.Rxf3#
- 1...Rfxc5
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Rh5
- 2.Rf3#
- 1...Rcxc5
- 2.Ra8#
- 1...Ra8
- 2.Rxa8#
- 1...Sg5
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...Sg7
- 2.Qe3#
- 1...Sd8
- 2.Qe3#
- 1...Sef8
- 2.Qe3#
- 1...Se5
- 2.Qa7#
- 1...Sf6
- 2.Qa7#
- 1...Sdf8
- 2.Qa7#
- 1...Rf3
- Tries
- 1.Qxe6?
- threat
- 2.Qb3#
- 2.Qe3#
- 2.Qa6#
- 1...Rfxc5
- 2.Qb3#
- 1...Rcxc5
- 2.Qb3#
- 1...Rxe8
- 2.Qb3#
- 2.Qa6#
- 1...Rf3
- 2.Rxf3#
- 2.Qa6#
- 1...Rf4
- 2.Qb3#
- 2.Qe3#
- 1...Rd5
- 2.Qa6#
- 1...Re5
- 2.Qb3#
- 2.Qa6#
- 1...Rf6
- 2.Qb3#
- 2.Qe3#
- 1...Rc6
- 2.Qb3#
- 2.Qe3#
- 1...Ra8
- 2.Rxa8#
- 2.Qb3#
- 2.Qe3#
- 1...Rb8
- 2.Qa6#
- 1...Se5
- 2.Ra7#
- 2.Qb3#
- 2.Qa6#
- 1...Sb6
- 2.Qb3#
- 2.Qe3#
- 1...Sb8
- 2.Qb3#
- 2.Qe3#
- 1...Sxc5!
- threat
- 1.Qxd7?
- threat
- 2.Qa4#
- 2.Qd3#
- 2.Qa7#
- 1...Rfxc5
- 2.Qa4#
- 1...Rxf7
- 2.Qa4#
- 2.Qd3#
- 1...Rcxc5
- 2.Qa4#
- 1...Sd4
- 2.Qa4#
- 2.Qa7#
- 1...Rf3
- 2.Rxf3#
- 2.Qa4#
- 2.Qa7#
- 1...Rf4
- 2.Qd3#
- 1...Rd5
- 2.Qa4#
- 2.Qa7#
- 1...Rc6
- 2.Qd3#
- 1...Rc7
- 2.Qa4#
- 2.Qd3#
- 1...Ra8
- 2.Rxa8#
- 2.Qd3#
- 1...Rb8
- 2.Qa4#
- 2.Qa7#
- 1...Rd8
- 2.Qa4#
- 2.Qa7#
- 1...Sf4
- 2.Qa4#
- 2.Qa7#
- 1...Sc7
- 2.Re3#
- 2.Qa4#
- 2.Qd3#
- 1...Sxc5!
- threat
- 1.Qxe6?
- Keys
- 1.Qd6!
- threat
- 2.Qd3#
- 2.Qa6#
- 1...Rfxc5
- 2.Rf3#
- 1...Rcxc5
- 2.Ra8#
- 1...Sexc5
- 2.Re3#
- 1...Sdxc5
- 2.Ra7#
- 1...Sd4
- 2.Qa6#
- 1...Rf3
- 2.Rxf3#
- 2.Qa6#
- 1...Rf4
- 2.Qd3#
- 1...Rd5
- 2.Qa6#
- 1...Rc6
- 2.Qd3#
- 1...Ra8
- 2.Rxa8#
- 2.Qd3#
- 1...Rb8
- 2.Qa6#
- 1...Sf4
- 2.Qa6#
- 1...Sc7
- 2.Re3#
- 2.Qd3#
- 1...Se5
- 2.Ra7#
- 2.Qa6#
- 1...Sb6
- 2.Qd3#
- 1...Sb8
- 2.Qd3#
- threat
- 1.Qd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 12
- Sets
- R(b);OGATE::R(F),XR(b)
- R(b);OGATE,P_SPINR(b),XP(D)::R(F)
- R(b);OGATE::R(F)
- R(e);OGATE,P_SPINR(e),XP(D)::R(G)
- R(e);OGATE::R(G),XR(e)
- S(c);OGATE::QAR(E)
- S(d);OGATE::QAR(E)
- Tries
- Try
- Q(E);XS(c)
- Threat
- DUALS(3)
- Vars
- R(b);XP(D)::QAR1(E)
- R(e);XP(D)::QAR1(E)
- R(b);::QAR(E)
- R(e);::QAR(E)
- Refutation
- S(d);XP(D)
- Try
- Q(E);XS(d)
- Threat
- DUALS(3)
- Vars
- R(b);XP(D)::QAR1(E)
- R(e);XP(D)::QAR1(E)
- R(b);::QAR(E)
- R(e);::QAR(E)
- Refutation
- S(c);XP(D)
- Try
- Actual
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,P_SPINR(b),XP(D)::R(F)
- R(e);OGATE,P_SPINR(e),XP(D)::R(G)
- S(c);OGATE,P_SPINS(c),XP(D)::R(G)
- S(d);OGATE,P_SPINS(d),XP(D)::R(F)
- S(c);::QAR(E)
- R(b);::QAR(E)
- R(e);::QAR(E)
- S(d);::QAR(E)
Developed and maintained by Brian Stephenson.
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