MESON Chess Problem Database
Problem Display
PID: 232862 (8/B1p5/p1P3p1/R7/2p5/2r1PkNK/1Q2p2R/2n5 w - - 0 1)
Morra, Juan Carlos
Il Due Mosse, 1954
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc2
- 2.Qf6#
- 1...Ra3
- 2.Qf6#
- 1...Rb3
- 2.Qf6#
- 1...Rd3
- 2.Qf6#
- 1...Rxe3
- 2.Qf6#
- 1...Sa2
- 2.Qxe2#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rf2#
- 2.Qf2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rf2#
- 2.Qf2#
- 2.Qg2#
- 1...g5
- 2.Rf5#
- 1...Rc2
- Tries
- 1.Kh4?
- 1...Rxe3
- 2.Qf6#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rf2#
- 2.Qf2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rf2#
- 2.Qf2#
- 2.Qg2#
- 1...Rc2
- 2.Qf6#
- 1...Ra3
- 2.Qf6#
- 1...Rb3
- 2.Qf6#
- 1...Rd3
- 2.Qf6#
- 1...Sa2
- 2.Qxe2#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...g5+!
- 1...Rxe3
- 1.Bc5?
- 1...Rxe3
- 2.Qf6#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rf2#
- 2.Qf2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rf2#
- 2.Qf2#
- 2.Qg2#
- 1...Rc2
- 2.Qf6#
- 1...Ra3
- 2.Qf6#
- 1...Rb3
- 2.Qf6#
- 1...Rd3
- 2.Qf6#
- 1...Sa2
- 2.Qxe2#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...g5!
- 1...Rxe3
- 1.Bb6?
- 1...Rxe3
- 2.Qf6#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rf2#
- 2.Qf2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rf2#
- 2.Qf2#
- 2.Qg2#
- 1...Rc2
- 2.Qf6#
- 1...Ra3
- 2.Qf6#
- 1...Rb3
- 2.Qf6#
- 1...Rd3
- 2.Qf6#
- 1...Sa2
- 2.Qxe2#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...g5
- 2.Rf5#
- 1...cxb6!
- 1...Rxe3
- 1.Rxe2?
- threat
- 2.Rf2#
- 1...Sxe2
- 2.Qxe2#
- 1...Rc2
- 2.Qf6#
- 1...Sd3!
- threat
- 1.Rd5?
- 1...Rxe3
- 2.Qf6#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rf2#
- 2.Qf2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rf2#
- 2.Qf2#
- 2.Qg2#
- 1...g5
- 2.Rf5#
- 1...Rc2
- 2.Qf6#
- 1...Ra3
- 2.Qf6#
- 1...Rb3
- 2.Qf6#
- 1...Rd3
- 2.Qf6#
- 1...Sa2
- 2.Qxe2#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...a5!
- 1...Rxe3
- 1.Rg5?
- 1...Rxe3
- 2.Qf6#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rf2#
- 2.Qf2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rf2#
- 2.Qf2#
- 2.Qg2#
- 1...Rc2
- 2.Qf6#
- 1...Ra3
- 2.Qf6#
- 1...Rb3
- 2.Qf6#
- 1...Rd3
- 2.Qf6#
- 1...Sa2
- 2.Qxe2#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...a5!
- 1...Rxe3
- 1.Rxa6?
- 1...Rxe3
- 2.Qf6#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rf2#
- 2.Qf2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rf2#
- 2.Qf2#
- 2.Qg2#
- 1...Rc2
- 2.Qf6#
- 1...Ra3
- 2.Qf6#
- 1...Rb3
- 2.Qf6#
- 1...Rd3
- 2.Qf6#
- 1...Sa2
- 2.Qxe2#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...g5!
- 1...Rxe3
- 1.Qd2?
- threat
- 2.Qd5#
- 1...Rxe3
- 2.Qxe3#
- 1...Sd3
- 2.Qxe2#
- 1...Rd3!
- threat
- 1.Kh4?
- Keys
- 1.Rh1!
- 1...Kf2
- 2.Rf1#
- 1...Rxe3
- 2.Qf6#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rf1#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Qg2#
- 1...Rc2
- 2.Qf6#
- 1...Ra3
- 2.Qf6#
- 1...Rb3
- 2.Qf6#
- 1...Rd3
- 2.Qf6#
- 1...Sa2
- 2.Qxe2#
- 1...Sb3
- 2.Qxe2#
- 1...Sd3
- 2.Qxe2#
- 1...g5
- 2.Rf5#
- 1...Kf2
- 1.Rh1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(c);OGATE::QAR(A)
- R(c);OGATE,XP(C)::QAR(A)
- S(a);N_GUARD::QAB1(A),XP(b)
- P(b);OGATE::QAB1(A)
- P(g);N_GUARD::R(F)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- R(c);OGATE,XP(C)::QAR(A)
- P(b);OGATE,P_PINS(D)::QAB1(A)
- R(c);OGATE::QAR(A)
- S(a);N_GUARD::QAB1(A),XP(b)
- Refutation
- P(g);CHECK
- Try
- B(H);
- Vars
- R(c);OGATE,XP(C)::QAR(A)
- P(b);OGATE::QAB1(A)
- R(c);OGATE::QAR(A)
- S(a);N_GUARD::QAB1(A),XP(b)
- Refutation
- P(g);
- Try
- B(H);
- Vars
- R(c);OGATE,XP(C)::QAR(A)
- P(b);OGATE::QAB1(A)
- R(c);OGATE::QAR(A)
- S(a);N_GUARD::QAB1(A),XP(b)
- P(g);N_GUARD::R(F)
- Refutation
- P(h);XB(H)
- Try
- R(B);XP(b)
- Threat
- R1(B)
- Vars
- S(a);OGATE,XR(B)::QAB1(A),XS(a)
- R(c);OGATE::QAR(A)
- Refutation
- S(a);
- Try
- R(F);
- Vars
- R(c);OGATE,XP(C)::QAR(A)
- P(b);OGATE::QAB1(A)
- P(g);N_GUARD::R(F)
- R(c);OGATE::QAR(A)
- S(a);N_GUARD::QAB1(A),XP(b)
- Refutation
- P(f);
- Try
- R(F);
- Vars
- R(c);OGATE,XP(C)::QAR(A)
- P(b);OGATE::QAB1(A)
- R(c);OGATE::QAR(A)
- S(a);N_GUARD::QAB1(A),XP(b)
- Refutation
- P(f);
- Try
- R(F);XP(f)
- Vars
- R(c);OGATE,XP(C)::QAR(A)
- P(b);OGATE::QAB1(A)
- R(c);OGATE::QAR(A)
- S(a);N_GUARD::QAB1(A),XP(b)
- Refutation
- P(g);
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(c);OGATE,XP(C)::QAR1(A),XR(c)
- S(a);N_GUARD::QAB1(A),XP(b)
- Refutation
- R(c);
- Try
- Actual
- R(B);
- Vars
- K(d);P-FLIGHT,P_SPINP(b)::R1(B)
- R(c);OGATE,XP(C)::QAR(A)
- P(b);OGATE::QAB1(A)
- P(b);N_GUARD::R(B)
- R(c);OGATE::QAR(A)
- S(a);N_GUARD::QAB1(A),XP(b)
- P(g);N_GUARD::R(F)
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).