MESON Chess Problem Database
Problem Display
PID: 107137 (5b2/1q6/N6R/4B3/PPk1N2Q/3R4/7P/1B5K w - - 0 1)
Monteiro da Silveira, Jose Luis
Xadrez Brasileiro, 1935
#2
11 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxe4+
- 2.Qxe4#
- 1...Qd5
- 2.Rc3#
- 1...Qxa6
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qc8
- 2.Sd2#
- 2.Sd6#
- 1...Qxb4
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qb5
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qb6
- 2.Sd2#
- 2.Sec5#
- 2.Sd6#
- 1...Qa7
- 2.Sd2#
- 2.Sec5#
- 2.Sd6#
- 1...Qc7
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qd7
- 2.Sd2#
- 2.Sd6#
- 1...Qe7
- 2.Sd2#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qf7
- 2.Sd2#
- 2.Sd6#
- 2.Sf6#
- 1...Qg7
- 2.Sd2#
- 2.Sg5#
- 2.Sd6#
- 1...Qh7
- 2.Sd2#
- 2.Sd6#
- 1...Qb8
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qxe4+
- Tries
- 1.Kg1?
- threat
- 2.Sd2#
- 2.Sd6#
- 1...Qb6+
- 2.Sec5#
- 1...Qa7+
- 2.Sec5#
- 1...Qg7+
- 2.Sg5#
- 1...Qxe4
- 2.Qxe4#
- 1...Bd6
- 2.Sd2#
- 2.Sxd6#
- 1...Bc5+!
- threat
- 1.Bc2?
- threat
- 2.Rd4#
- 1...Qxe4+
- 2.Qxe4#
- 1...Qd5
- 2.Rc3#
- 1...Qb6
- 2.Sd2#
- 2.Sec5#
- 2.Sd6#
- 1...Qa7
- 2.Sd2#
- 2.Sec5#
- 2.Sd6#
- 1...Qd7
- 2.Sd2#
- 2.Sd6#
- 1...Bc5!
- threat
- 1.Ra3?
- threat
- 2.Ba2#
- 1...Qxe4+
- 2.Qxe4#
- 1...Qxa6
- 2.Sc3#
- 2.Sf6#
- 1...Qxb4
- 2.Sc3#
- 2.Sf6#
- 1...Kd5!
- threat
- 1.Rf3?
- threat
- 2.Ba2#
- 1...Qxa6
- 2.Sf6#
- 1...Qxb4
- 2.Sf6#
- 1...Kd5!
- threat
- 1.Rg3?
- threat
- 2.Ba2#
- 1...Qxe4+
- 2.Qxe4#
- 1...Qxa6
- 2.Sf6#
- 1...Qxb4
- 2.Sf6#
- 1...Kd5!
- threat
- 1.Rh3?
- threat
- 2.Ba2#
- 1...Qxe4+
- 2.Qxe4#
- 1...Qxa6
- 2.Sf6#
- 1...Qxb4
- 2.Sf6#
- 1...Kd5!
- threat
- 1.Rc6+?
- 1...Bc5
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sexc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 2.Rxc5#
- 1...Qxc6!
- 1...Bc5
- 1.Rhd6?
- threat
- 2.Ba2#
- 2.Rc3#
- 2.R6d4#
- 1...Qxe4+
- 2.Qxe4#
- 1...Qxa6
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 2.R6d4#
- 1...Qxb4
- 2.Sd2#
- 2.Sf2#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sf6#
- 2.R6d4#
- 1...Qd5
- 2.Rc3#
- 1...Qb6
- 2.Sd2#
- 2.Sec5#
- 2.Ba2#
- 2.Rc3#
- 1...Qa7
- 2.Sd2#
- 2.Sec5#
- 2.Ba2#
- 2.Rc3#
- 1...Qd7
- 2.Sd2#
- 2.Ba2#
- 2.Rc3#
- 1...Bxd6!
- threat
- 1.Qf2?
- threat
- 2.Qd4#
- 2.Qa2#
- 2.Qc2#
- 1...Qxa6
- 2.Qd4#
- 1...Qxb4
- 2.Qd4#
- 2.Qf7#
- 1...Bxb4
- 2.Qd4#
- 2.Qa2#
- 1...Qd5
- 2.Rc3#
- 2.Qa2#
- 2.Qc2#
- 1...Qb6
- 2.Sd2#
- 2.Qa2#
- 2.Qc2#
- 1...Qa7
- 2.Sd2#
- 2.Qa2#
- 2.Qc2#
- 1...Qd7
- 2.Sd2#
- 2.Qa2#
- 2.Qc2#
- 1...Bc5
- 2.Qxc5#
- 2.Qa2#
- 2.Qc2#
- 1...Qxe4+!
- threat
- 1.Qg3?
- threat
- 2.Ba2#
- 2.Rd4#
- 1...Qxa6
- 2.Rd4#
- 1...Qxb4
- 2.Rd4#
- 2.Qg8#
- 1...Qd5
- 2.Ba2#
- 2.Rc3#
- 1...Qb6
- 2.Sd2#
- 2.Ba2#
- 1...Qa7
- 2.Sd2#
- 2.Ba2#
- 1...Qd7
- 2.Sd2#
- 2.Ba2#
- 1...Bc5
- 2.Ba2#
- 1...Qxe4+!
- threat
- 1.Qh3?
- threat
- 2.Ba2#
- 2.Rd4#
- 1...Qxa6
- 2.Rd4#
- 1...Qxb4
- 2.Rd4#
- 2.Qe6#
- 1...Qd5
- 2.Ba2#
- 2.Rc3#
- 1...Qb6
- 2.Sd2#
- 2.Ba2#
- 1...Qa7
- 2.Sd2#
- 2.Ba2#
- 2.Qe6#
- 1...Qd7
- 2.Sd2#
- 2.Ba2#
- 1...Bc5
- 2.Ba2#
- 1...Qxe4+!
- threat
- 1.Kg1?
- Keys
- 1.Re3!
- threat
- 2.Ba2#
- 1...Qxe4+
- 2.Qxe4#
- 1...Kd5
- 2.Sc3#
- 1...Qxa6
- 2.Sf6#
- 1...Qxb4
- 2.Sf6#
- threat
- 1.Re3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::QAR2(H),XQ(b)
- Q(b);SBLOCK::R1(D)
- Tries
- Try
- K(B);N_SPINS(G),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD::QAR(H)+S(G)
- Q(b);OGATE,P_SPINQ(b),XS(G)::QAR2(H),XQ(b)
- Refutation
- B(c);CHECK
- Try
- B(A);
- Threat
- R1(D)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::QAR2(H),XQ(b)
- Q(b);SBLOCK::R1(D)
- Refutation
- B(c);
- Try
- R(D);
- Threat
- B(A)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::QAR2(H),XQ(b)
- Refutation
- K(a);N_PINS(G),S_FLIGHT
- Try
- R(D);N_SPINS(G)
- Threat
- B(A)
- Vars
- Q(b);N_GUARD,XS(J)::QAR(H)+S(G)
- Q(b);N_GUARD,XP(F)::QAR(H)+S(G)
- Refutation
- K(a);S_FLIGHT
- Try
- R(D);
- Threat
- B(A)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::QAR2(H),XQ(b)
- Q(b);N_PINS(G),XS(J)::QAR(H)+S(G)
- Q(b);N_PINS(G),XP(F)::QAR(H)+S(G)
- Refutation
- K(a);N_PINS(G),S_FLIGHT
- Try
- R(D);
- Threat
- B(A)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::QAR2(H),XQ(b)
- Q(b);N_PINS(G),XS(J)::QAR(H)+S(G)
- Q(b);N_PINS(G),XP(F)::QAR(H)+S(G)
- Refutation
- K(a);N_PINS(G),S_FLIGHT
- Try
- R(K);CHECK,N_SPINS(G)
- Refutation
- Q(b);P_PINS(G),XR(K)
- Try
- R(K);
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::QAR2(H),XQ(b)
- Q(b);::R1(D)
- Refutation
- B(c);XR(K)
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- Q(b);N_PINS(G),XS(J)::QAR1(H)
- Refutation
- Q(b);CHECK,XS(G)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- Q(b);N_PINS(G),XS(J)::R1(D)
- B(c);::B(A)
- Refutation
- Q(b);CHECK,XS(G)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- Q(b);N_PINS(G),XS(J)::R1(D)
- B(c);::B(A)
- Refutation
- Q(b);CHECK,XS(G)
- Try
- Actual
- R(D);
- Threat
- B(A)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::QAR2(H),XQ(b)
- K(a);N_PINS(G),S_FLIGHT::S(G)
- Q(b);N_PINS(G),XS(J)::QAR(H)+S(G)
- Q(b);N_PINS(G),XP(F)::QAR(H)+S(G)
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).