MESON Chess Problem Database
Problem Display
PID: 263743 (Q3R2K/1r4P1/3B4/N1P4R/1nNk4/4p3/1P2P1rn/7B w - - 0 1)
Easter, Norris
Tijdschrift vd NSB, 1933
#2
12 + 6
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Re4#
- 1...Rf2
- 2.Re4#
- 1...Rg3
- 2.Re4#
- 1...Rg6
- 2.Re4#
- 1...Rgxg7
- 2.Re4#
- 1...Rb5
- 2.Re4#
- 2.Qe4#
- 1...Rb6
- 2.Re4#
- 2.Qe4#
- 1...Ra7
- 2.Re4#
- 2.Qe4#
- 1...Rc7
- 2.Re4#
- 2.Qe4#
- 1...Rd7
- 2.Re4#
- 2.Qe4#
- 1...Rf7
- 2.Re4#
- 2.Qe4#
- 1...Rbxg7
- 2.Re4#
- 2.Qe4#
- 1...Rb8
- 2.Qe4#
- 1...Rg1
- Tries
- 1.Sa3?
- threat
- 2.Sb3#
- 1...Sa2
- 2.Sc2#
- 2.Sc6#
- 1...Sc2
- 2.Sxc2#
- 2.Sc6#
- 1...Sd3
- 2.Sc2#
- 2.Sc6#
- 1...Sd5
- 2.Sc2#
- 2.Sc6#
- 1...Sa6
- 2.Sc2#
- 2.Sc6#
- 1...Sc6
- 2.Sc2#
- 2.Sxc6#
- 1...Rxe2!
- threat
- 1.Sxe3?
- threat
- 2.Sb3#
- 1...Re7
- 2.Sf5#
- 1...Sa2
- 2.Sc2#
- 2.Sc6#
- 2.Rd5#
- 1...Sc2
- 2.Sxc2#
- 2.Sc6#
- 2.Rd5#
- 1...Sd3
- 2.Sc2#
- 2.Sc6#
- 2.Rd5#
- 1...Sd5
- 2.Sc2#
- 2.Sf5#
- 2.Sc6#
- 2.Rxd5#
- 1...Sa6
- 2.Sc2#
- 2.Sc6#
- 2.Rd5#
- 1...Sc6
- 2.Sc2#
- 2.Sxc6#
- 2.Rd5#
- 1...Rxe2!
- threat
- 1.Sb6?
- threat
- 2.Sb3#
- 1...Rxb6
- 2.Re4#
- 2.Qe4#
- 1...Rxe2!
- threat
- 1.Sa3?
- Keys
- 1.Se5!
- 1...Ke4
- 2.Sf3#
- 1...Kd5
- 2.Sec6#
- 1...Rxe2
- 2.Sb3#
- 1...Rgxg7
- 2.Sb3#
- 1...Rbxg7
- 2.Sb3#
- 1...Rg1
- 2.Sb3#
- 1...Rf2
- 2.Sb3#
- 1...Rg3
- 2.Sb3#
- 1...Rg4
- 2.Sb3#
- 1...Rg5
- 2.Sb3#
- 1...Rg6
- 2.Sb3#
- 1...Rb5
- 2.Sb3#
- 1...Rb6
- 2.Sb3#
- 1...Ra7
- 2.Sb3#
- 1...Rc7
- 2.Sb3#
- 1...Rd7
- 2.Sb3#
- 1...Re7
- 2.Sb3#
- 1...Rf7
- 2.Sb3#
- 1...Rb8
- 2.Sb3#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sg4
- 2.Sf3#
- 1...Sa2
- 2.Sec6#
- 1...Sc2
- 2.Sec6#
- 1...Sd3
- 2.Sec6#
- 1...Sd5
- 2.Sec6#
- 1...Sa6
- 2.Sec6#
- 1...Sc6
- 2.Sexc6#
- 1...Ke4
- 1.Se5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 6
- ADDED MATES = 22
- REMOVED MATES = 0
- Sets
- R(a);::R1(K)
- R(a);XP(I)::R1(K)
- R(f);OGATE,P_PINR(K)::QAR1(J)
- Tries
- Try
- S(D);
- Threat
- S(E)
- Refutation
- R(a);XP(C)
- Try
- S(D);XP(c)
- Threat
- S(E)
- Vars
- R(f);::S(D)
- Refutation
- R(a);XP(C)
- Try
- S(D);
- Threat
- S(E)
- Refutation
- R(a);XP(C)
- Try
- Actual
- S(D);
- Vars
- K(e);P-FLIGHT,P_SPINR(a),S_CUTS(b)::R(K)+S(D)
- K(e);P-FLIGHT,P_SPINR(a),S_CUTS(d)::R(G)+S(D)
- R(a);XP(C)::S(E)
- R(a);XP(I)::S(E)
- R(f);XP(I)::S(E)
- R(a);::S(E)
- R(f);::S(E)
- R(f);P_PINR(K)::S(E)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- S(d);N_GUARD::S(D)
- S(d);N_GUARD::S(D),XS(d)
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