MESON Chess Problem Database
Problem Display
PID: 234385 (2q4B/8/3PN3/np5R/r1k1B3/3N4/P7/1RK2b2 w - - 0 1)
Ellerman, Arnoldo
Problemas, 1965
#2
9 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa6
- 2.Rc5#
- 1...Qxe6
- 2.Rc5#
- 1...Qb7
- 2.Rc5#
- 1...Qd7
- 2.Rc5#
- 1...Qc5
- 2.Rxc5#
- 1...Qa8
- 2.Rc5#
- 1...Qb8
- 2.Rc5#
- 1...Qd8
- 2.Rc5#
- 1...Qe8
- 2.Rc5#
- 1...Qf8
- 2.Rc5#
- 1...Qg8
- 2.Rc5#
- 1...Qxh8
- 2.Rc5#
- 1...Rxa2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Bxd3
- 2.Bd5#
- 1...Sb3+
- 2.axb3#
- 1...Sc6
- 2.Rc5#
- 1...b4
- 2.Sb2#
- 1...Qa6
- Tries
- 1.Kd1?
- threat
- 2.Rc1#
- 1...Qxh8
- 2.Rc5#
- 1...Rxa2
- 2.Rb4#
- 1...Bxd3
- 2.Bd5#
- 1...Ra3
- 2.Rb4#
- 1...Sb3
- 2.axb3#
- 1...Be2+!
- threat
- 1.Kc2?
- threat
- 2.Se5#
- 2.Bd5#
- 1...Bxd3+
- 2.Bxd3#
- 1...Qxe6
- 2.Rc5#
- 1...Qxh8
- 2.Bd5#
- 2.Rc5#
- 1...Qb7
- 2.Se5#
- 2.Rc5#
- 1...Qc5
- 2.Rxc5#
- 1...Qc6
- 2.Se5#
- 1...Qa8
- 2.Se5#
- 2.Rc5#
- 1...Bg2
- 2.Se5#
- 1...Sb3
- 2.Bd5#
- 2.axb3#
- 1...Sc6
- 2.Bd5#
- 2.Rc5#
- 1...b4
- 2.Sb2#
- 1...Rxa2+!
- threat
- 1.Kd2?
- threat
- 2.Se5#
- 2.Bd5#
- 2.Rc1#
- 1...Sb3+
- 2.axb3#
- 1...Qxe6
- 2.Rc1#
- 2.Rc5#
- 1...Qxh8
- 2.Bd5#
- 2.Rc5#
- 1...Bxd3
- 2.Bxd3#
- 2.Bd5#
- 1...Qb7
- 2.Se5#
- 2.Rc1#
- 2.Rc5#
- 1...Qc5
- 2.Rc1#
- 2.Rxc5#
- 1...Qc6
- 2.Se5#
- 2.Rc1#
- 1...Qa8
- 2.Se5#
- 2.Rc1#
- 2.Rc5#
- 1...Ra3
- 2.Se5#
- 2.Bd5#
- 2.Rb4#
- 1...Bg2
- 2.Se5#
- 2.Rc1#
- 1...Sc6
- 2.Bd5#
- 2.Rc1#
- 2.Rc5#
- 1...b4
- 2.Sb2#
- 2.Rc1#
- 1...Rxa2+!
- threat
- 1.Ba1?
- threat
- 2.Se5#
- 1...Sb3+
- 2.axb3#
- 1...Qxe6
- 2.Rc5#
- 1...Bxd3
- 2.Bd5#
- 1...Qc5
- 2.Rxc5#
- 1...Qh8
- 2.Rc5#
- 1...Sc6
- 2.Rc5#
- 1...b4!
- threat
- 1.Bd4?
- threat
- 2.Se5#
- 1...Sb3+
- 2.axb3#
- 1...Bxd3
- 2.Bd5#
- 1...Qc5
- 2.Rxc5#
- 1...Qh8
- 2.Rc5#
- 1...Sc6
- 2.Rc5#
- 1...b4
- 2.Sb2#
- 1...Qxe6!
- threat
- 1.Rb3?
- threat
- 2.Sb2#
- 2.Se5#
- 2.Bd5#
- 2.Rc3#
- 1...Qxe6
- 2.Sb2#
- 2.Rc3#
- 2.Rc5#
- 1...Qxh8
- 2.Bd5#
- 2.Rc5#
- 1...Rxa2
- 2.Bd5#
- 2.Rc3#
- 2.Rb4#
- 1...Bxd3
- 2.Bxd3#
- 2.Bd5#
- 1...Qc6
- 2.Sb2#
- 2.Se5#
- 2.Rc3#
- 1...Qb7
- 2.Sb2#
- 2.Se5#
- 2.Rc3#
- 2.Rc5#
- 1...Qc5
- 2.Sb2#
- 2.Rc3#
- 2.Rxc5#
- 1...Qa8
- 2.Sb2#
- 2.Se5#
- 2.Rc3#
- 2.Rc5#
- 1...Ra3
- 2.Sb2#
- 2.Se5#
- 2.Bd5#
- 2.Rb4#
- 1...Bg2
- 2.Sb2#
- 2.Se5#
- 2.Rc3#
- 1...Sc6
- 2.Sb2#
- 2.Bd5#
- 2.Rc3#
- 2.Rc5#
- 1...b4
- 2.Sb2#
- 1...Sxb3+!
- threat
- 1.Rbxb5?
- threat
- 2.Sb2#
- 1...Sb3+
- 2.axb3#
- 1...Qxh8
- 2.Rbc5#
- 2.Rhc5#
- 1...Rxa2
- 2.Rb4#
- 1...Qc5
- 2.Rbxc5#
- 2.Rhxc5#
- 1...Rb4
- 2.Rxb4#
- 1...Bxd3!
- threat
- 1.Kd1?
- Keys
- 1.Rb2!
- threat
- 2.Rc2#
- 1...Sb3+
- 2.axb3#
- 1...Qxh8
- 2.Rc5#
- 1...Rxa2
- 2.Rb4#
- 1...Bxd3
- 2.Bd5#
- 1...Ra3
- 2.Rb4#
- threat
- 1.Rb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 14
- Sets
- Q(f);N_GUARD::R1(F)
- Q(f);N_GUARD,XS(H)::R1(F)
- Q(f);N_GUARD::R1(F),XQ(f)
- Q(f);N_GUARD,XB(I)::R1(F)
- R(b);N_GUARD,XP(C)::R1(A)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- B(a);SBLOCK,XS(D)::B(E)
- S(d);CHECK,OGATE::P(C),XS(d)
- S(d);S_CUTQ(f)::R1(F)
- P(e);SBLOCK::S(D)
- Tries
- Try
- K(B);P-FLIGHT
- Threat
- R(A)
- Vars
- Q(f);N_GUARD,XB(I)::R1(F)
- R(b);N_GUARD,XP(C)::R1(A)
- B(a);SBLOCK,XS(D)::B(E)
- R(b);N_GUARD::R1(A)
- S(d);OGATE::P(C),XS(d)
- Refutation
- B(a);CHECK
- Try
- K(B);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,OGATE,XS(D)::B(E),XB(a)
- Q(f);N_GUARD,XS(H)::R1(F)
- Q(f);N_GUARD::R1(F),XQ(f)
- Q(f);::S(D)
- B(a);::S(D)
- P(e);SBLOCK::S(D)
- Refutation
- R(b);CHECK,XP(C)
- Try
- K(B);S_FLIGHT
- Threat
- DUALS(3)
- Vars
- S(d);CHECK,OGATE::P(C),XS(d)
- Refutation
- R(b);CHECK,XP(C)
- Try
- B(I);
- Threat
- S(D)
- Vars
- S(d);CHECK,OGATE::P(C),XS(d)
- Q(f);N_GUARD,XS(H)::R1(F)
- B(a);SBLOCK,XS(D)::B(E)
- Q(f);N_GUARD::R1(F),XQ(f)
- Q(f);N_GUARD::R1(F)
- S(d);S_CUTQ(f)::R1(F)
- Refutation
- P(e);
- Try
- B(I);
- Threat
- S(D)
- Vars
- S(d);CHECK,OGATE::P(C),XS(d)
- B(a);SBLOCK,XS(D)::B(E)
- Q(f);N_GUARD::R1(F),XQ(f)
- Q(f);N_GUARD::R1(F)
- S(d);S_CUTQ(f)::R1(F)
- P(e);SBLOCK::S(D)
- Refutation
- Q(f);XS(H)
- Try
- R(A);
- Threat
- DUALS(4)
- Vars
- P(e);::S(D)
- Refutation
- S(d);CHECK,XR(A)
- Try
- R(A);XP(e)
- Threat
- S(D)
- Vars
- S(d);CHECK,OGATE::P(C),XS(d)
- R(b);N_GUARD,XP(C)::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- B(a);XS(D)
- Try
- Actual
- R(A);
- Threat
- R(A)
- Vars
- S(d);CHECK,OGATE::P(C),XS(d)
- Q(f);N_GUARD,XB(I)::R1(F)
- R(b);N_GUARD,XP(C)::R1(A)
- B(a);SBLOCK,XS(D)::B(E)
- R(b);N_GUARD::R1(A)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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