MESON Chess Problem Database
Problem Display
PID: 245150 (N1bqrb2/Nr6/2B5/k2n3R/1nQ5/p1BRP3/3K4/8 w - - 0 1)
Maleika, Gerhard
Scacchi e Scienze Applicate, 2010
#2
9 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Qxb5#
- 1...Rxa7
- 2.Qb5#
- 1...Rc7
- 2.Qb5#
- 1...Rd7
- 2.Qb5#
- 1...Rbe7
- 2.Bxb4#
- 2.Qb5#
- 1...Rf7
- 2.Qb5#
- 1...Rg7
- 2.Qb5#
- 1...Rh7
- 2.Qb5#
- 1...a2
- 2.Qxa2#
- 1...Rb5
- Tries
- 1.Ba1?
- threat
- 2.Rxa3#
- 1...Sxd3
- 2.Qa4#
- 1...Sxc6
- 2.Sxc6#
- 1...Sa2
- 2.Qa4#
- 1...Sc2
- 2.Qa4#
- 1...Sa6
- 2.Qa4#
- 1...a2
- 2.Ra3#
- 1...Rxe3!
- threat
- 1.Bb2?
- threat
- 2.Rxa3#
- 1...Sxd3
- 2.Qa4#
- 1...Sxc6
- 2.Sxc6#
- 1...axb2
- 2.Ra3#
- 1...Sa2
- 2.Qa4#
- 1...Sc2
- 2.Qa4#
- 1...Sa6
- 2.Qa4#
- 1...a2
- 2.Ra3#
- 1...Rxe3!
- threat
- 1.Bd4?
- threat
- 2.Rxa3#
- 1...Sxd3
- 2.Qa4#
- 1...Sxc6
- 2.Sxc6#
- 1...Sa2
- 2.Qa4#
- 1...Sc2
- 2.Qa4#
- 1...Sa6
- 2.Qa4#
- 1...a2
- 2.Ra3#
- 1...Rxe3!
- threat
- 1.Bf6?
- threat
- 2.Rxa3#
- 1...Sxd3
- 2.Qa4#
- 1...Sxc6
- 2.Sxc6#
- 1...Sa2
- 2.Qa4#
- 1...Sc2
- 2.Qa4#
- 1...Sa6
- 2.Qa4#
- 1...a2
- 2.Ra3#
- 1...Rxe3!
- threat
- 1.Bg7?
- threat
- 2.Rxa3#
- 1...Sxd3
- 2.Qa4#
- 1...Sxc6
- 2.Sxc6#
- 1...Sa2
- 2.Qa4#
- 1...Sc2
- 2.Qa4#
- 1...Sa6
- 2.Qa4#
- 1...a2
- 2.Ra3#
- 1...Rxe3!
- threat
- 1.Bh8?
- threat
- 2.Rxa3#
- 1...Sxd3
- 2.Qa4#
- 1...Sxc6
- 2.Sxc6#
- 1...Sa2
- 2.Qa4#
- 1...Sc2
- 2.Qa4#
- 1...Sa6
- 2.Qa4#
- 1...a2
- 2.Ra3#
- 1...Rxe3!
- threat
- 1.Qb3?
- threat
- 2.Qa4#
- 2.Qxa3#
- 1...Rb5
- 2.Qxa3#
- 1...a2
- 2.Qxa2#
- 2.Qa4#
- 2.Qa3#
- 1...Ka6!
- threat
- 1.Ba1?
- Keys
- 1.Be5!
- threat
- 2.Rxa3#
- 1...Sxd3
- 2.Qa4#
- 1...Sxc6
- 2.Sxc6#
- 1...Sxe3
- 2.Bc7#
- 1...Sa2
- 2.Qa4#
- 1...Sc2
- 2.Qa4#
- 1...Sa6
- 2.Qa4#
- 1...Sc3
- 2.Bc7#
- 1...Sf4
- 2.Bc7#
- 1...Sb6
- 2.Qb5#
- 1...Sf6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Se7
- 2.Bc7#
- 1...a2
- 2.Ra3#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 12
- REMOVED MATES = 7
- Sets
- R(e);N_GUARD::QAR1(E),XR(e)
- R(e);N_GUARD,XS(H)::QAR1(E)
- R(e);N_GUARD::QAR1(E)
- P(a);OGATEB::QAR(E),XP(a)
- Tries
- Try
- B(B);N_PINS(b),P_PINS(d)
- Threat
- R(C),XP(a)
- Vars
- S(b);OGATE,XR(C)::QAR1(E)
- S(b);XB(G)::S(H),XS(b)
- S(b);OGATE::QAR1(E)
- S(b);OGATE,SBLOCK::QAR1(E)
- P(a);::R(C)
- Refutation
- R(h);XP(D)
- Try
- B(B);N_PINS(b),P_PINS(d)
- Threat
- R(C),XP(a)
- Vars
- S(b);OGATE,XR(C)::QAR1(E)
- S(b);XB(G)::S(H),XS(b)
- P(a);XB(B)::R(C)
- S(b);OGATE::QAR1(E)
- S(b);OGATE,SBLOCK::QAR1(E)
- P(a);::R(C)
- Refutation
- R(h);XP(D)
- Try
- B(B);N_PINS(b),P_PINS(d)
- Threat
- R(C),XP(a)
- Vars
- S(b);OGATE,XR(C)::QAR1(E)
- S(b);XB(G)::S(H),XS(b)
- S(b);OGATE::QAR1(E)
- S(b);OGATE,SBLOCK::QAR1(E)
- P(a);::R(C)
- Refutation
- R(h);XP(D)
- Try
- B(B);N_PINS(b),P_PINS(d)
- Threat
- R(C),XP(a)
- Vars
- S(b);OGATE,XR(C)::QAR1(E)
- S(b);XB(G)::S(H),XS(b)
- S(b);OGATE::QAR1(E)
- S(b);OGATE,SBLOCK::QAR1(E)
- P(a);::R(C)
- Refutation
- R(h);XP(D)
- Try
- B(B);N_PINS(b),P_PINS(d)
- Threat
- R(C),XP(a)
- Vars
- S(b);OGATE,XR(C)::QAR1(E)
- S(b);XB(G)::S(H),XS(b)
- S(b);OGATE::QAR1(E)
- S(b);OGATE,SBLOCK::QAR1(E)
- P(a);::R(C)
- Refutation
- R(h);XP(D)
- Try
- B(B);N_PINS(b),P_PINS(d)
- Threat
- R(C),XP(a)
- Vars
- S(b);OGATE,XR(C)::QAR1(E)
- S(b);XB(G)::S(H),XS(b)
- S(b);OGATE::QAR1(E)
- S(b);OGATE,SBLOCK::QAR1(E)
- P(a);::R(C)
- Refutation
- R(h);XP(D)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(e);::QAR2(E),XP(a)
- Refutation
- K(c);N_SPINS(b),P-FLIGHT
- Try
- Actual
- B(B);N_PINS(b)
- Threat
- R(C),XP(a)
- Vars
- S(b);OGATE,XR(C)::QAR1(E)
- S(b);XB(G)::S(H),XS(b)
- S(d);P_PINR(C),XP(D)::R(F)+B(B),DCHECK
- S(b);OGATE::QAR1(E)
- S(b);OGATE,SBLOCK::QAR1(E)
- S(d);P_PINR(C)::R(F)+B(B),DCHECK
- S(d);P_PINR(C),S_CUTR(e)::QAR1(E)
- S(d);P_PINR(C)::R(F)+B(B),DCHECK,XS(d)
- P(a);::R(C)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).