MESON Chess Problem Database
Problem Display
PID: 15223 (8/8/8/8/NQ6/2R5/r1P5/2k1K3 w - - 0 1)
Massmann, Wilhelm Karl Heinrich
Speckmann, Werner
Il Duale, 1981
#2
5 + 2
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Rxc2
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Ra1
- Tries
- 1.Rb3?
- threat
- 2.Qd2#
- 1...Kxc2
- 2.Rc3#
- 2.Qc3#
- 2.Qc4#
- 1...Rxc2
- 2.Rb1#
- 1...Rb2!
- threat
- 1.Rd3?
- 1...Kxc2
- 2.Rc3#
- 1...Rxc2
- 2.Rd1#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Kxc2
- 1.Rc4?
- 1...Rxc2
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Rc5?
- 1...Rxc2
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Rc6?
- 1...Rxc2
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Rc7?
- 1...Rxc2
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Rc8?
- 1...Rxc2
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Qd6?
- threat
- 2.Qd1#
- 1...Kb1
- 2.Qd1#
- 1...Rxa4!
- threat
- 1.Qb3?
- 1...Rxc2
- 2.Rxc2#
- 2.Qxc2#
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Qd4?
- threat
- 2.Qd1#
- 1...Kb1
- 2.Qd1#
- 1...Rxa4!
- threat
- 1.Qg4?
- threat
- 2.Qd1#
- 1...Kb1
- 2.Qd1#
- 1...Rxa4!
- threat
- 1.Qb5?
- 1...Rxc2
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Qb6?
- 1...Rxc2
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Qb7?
- 1...Rxc2
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Qb8?
- 1...Rxc2
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Ra3
- 2.Qb2#
- 1...Rxa4!
- 1...Rxc2
- 1.Rb3?
- Keys
- 1.Ra3!
- 1...Kxc2
- 2.Rc3#
- 1...Rxc2
- 2.Ra1#
- 1...Rxa3
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Ra1
- 2.Qb2#
- 1...Kxc2
- 1.Ra3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- Tries
- Try
- R(C);
- Threat
- QAB1(E)
- Vars
- R(b);SBLOCK,XP(B)::R1(C)
- Refutation
- R(b);
- Try
- R(C);
- Vars
- K(a);OGATEB,P-FLIGHT,XP(B)::R1(C)
- R(b);SBLOCK,XP(B)::R1(C)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- R(C);
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- R(C);
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- R(C);
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- R(C);
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- R(C);
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- K(a);P-FLIGHT::QAR2(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);
- Vars
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- K(a);P-FLIGHT::QAR2(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- K(a);P-FLIGHT::QAR2(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(B)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::QAB1(E)
- Refutation
- R(b);XS(D)
- Try
- Actual
- R(C);
- Vars
- K(a);OGATEB,P-FLIGHT,XP(B)::R1(C)
- R(b);OGATE,SBLOCK,XP(B)::R(C)
- R(b);N_GUARD,XR(C)::QAB1(E)
- R(b);N_GUARD::QAB1(E),XR(b)
- R(b);N_GUARD::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).