MESON Chess Problem Database
Problem Display
PID: 248109 (Kb3B2/4R2p/P2k4/R2P2N1/2q4p/1p1Q3b/5r2/7B w - - 0 1)
Wrobel, Marian
1st HM., White MT (A), 1952-1953
#2
9 + 8
| 14867 | BCPS Library | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qb5
- 2.Se4#
- 1...Qxd5+
- 2.Qxd5#
- 1...Qxa6+
- 2.Qxa6#
- 1...Qc1
- 2.Se4#
- 1...Qc2
- 2.Se4#
- 1...Qc3
- 2.Se4#
- 1...Qe4
- 2.Sxe4#
- 1...Qc5
- 2.Se4#
- 1...Qc6+
- 2.dxc6#
- 1...Qc7
- 2.Se4#
- 1...Qc8
- 2.Se4#
- 1...Ra2
- 2.Sf7#
- 1...Rb2
- 2.Sf7#
- 1...Rc2
- 2.Sf7#
- 1...Rd2
- 2.Sf7#
- 1...Re2
- 2.Sf7#
- 1...Rg2
- 2.Sf7#
- 1...Rh2
- 2.Sf7#
- 1...Rf7
- 2.Sxf7#
- 1...Bf5
- 2.Sf7#
- 1...Qb5
- Tries
- 1.Qxc4?
- threat
- 2.Se4#
- 2.Qb4#
- 2.Qc5#
- 2.Qc6#
- 1...Rxf8
- 2.Qb4#
- 2.Qc5#
- 1...Rc2
- 2.Se4#
- 2.Sf7#
- 2.Qf4#
- 1...Re2
- 2.Sf7#
- 2.Qb4#
- 2.Qc5#
- 2.Qc6#
- 1...Rf4
- 2.Qxf4#
- 2.Qc5#
- 2.Qc6#
- 1...Bg2
- 2.Qb4#
- 2.Qc5#
- 2.Qc6#
- 1...Bf5
- 2.Sf7#
- 2.Qb4#
- 2.Qc5#
- 2.Qc6#
- 1...Bd7
- 2.Se4#
- 2.Re6#
- 2.Qc5#
- 1...Ba7
- 2.Se4#
- 2.Qc6#
- 2.Qc7#
- 1...Be6!
- threat
- 1.Qf5?
- threat
- 2.Sf7#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rf7#
- 2.Rg7#
- 2.Rxh7#
- 2.Qe5#
- 1...Qxd5+
- 2.Qxd5#
- 1...Qxa6+
- 2.Ra7#
- 1...Qc6+
- 2.Rb7#
- 1...Bxf5
- 2.Sf7#
- 1...Qb5
- 2.Se4#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rf7#
- 2.Rg7#
- 2.Rxh7#
- 1...Qe2
- 2.Sf7#
- 2.Rd7#
- 1...Qc3
- 2.Se4#
- 2.Sf7#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rf7#
- 2.Rg7#
- 2.Rxh7#
- 1...Qd4
- 2.Sf7#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rf7#
- 2.Rg7#
- 2.Rxh7#
- 1...Qe4
- 2.Sxe4#
- 2.Sf7#
- 2.Rd7#
- 1...Qf4
- 2.Sf7#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rf7#
- 2.Rg7#
- 2.Rxh7#
- 1...Qc7
- 2.Se4#
- 2.Sf7#
- 2.Rd7#
- 2.Qe5#
- 1...Qc8
- 2.Se4#
- 2.Sf7#
- 2.Rd7#
- 2.Qe5#
- 1...Re2
- 2.Sf7#
- 2.Rd7#
- 1...Ba7
- 2.Sf7#
- 2.Rxa7#
- 2.Rb7#
- 2.Rd7#
- 2.Rf7#
- 2.Rg7#
- 2.Rxh7#
- 2.Qe5#
- 1...Bc7
- 2.Sf7#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rd7#
- 2.Rf7#
- 2.Rg7#
- 2.Rxh7#
- 2.Re8#
- 2.Qe5#
- 1...h5
- 2.Sf7#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rf7#
- 2.Rg7#
- 2.Rh7#
- 2.Qe5#
- 1...h6
- 2.Sf7#
- 2.Ra7#
- 2.Rb7#
- 2.Rd7#
- 2.Rf7#
- 2.Rg7#
- 2.Rh7#
- 2.Qe5#
- 1...Rxf5!
- threat
- 1.Qg6+?
- 1...Rf6
- 2.Sf7#
- 1...Be6
- 2.Qxe6#
- 1...hxg6!
- 1...Rf6
- 1.Qg3+?
- 1...Qf4
- 2.Se4#
- 2.Sf7#
- 1...Rf4
- 2.Sf7#
- 1...hxg3!
- 1...Qf4
- 1.Qd4?
- threat
- 2.Se4#
- 2.Rf7#
- 2.Qe5#
- 1...Qxd5+
- 2.Qxd5#
- 1...Qxa6+
- 2.Rxa6#
- 1...Qc6+
- 2.dxc6#
- 1...Rxf8
- 2.Qe5#
- 1...Bd7
- 2.Qe5#
- 1...Qe2
- 2.Qc5#
- 2.Qb6#
- 2.Qb4#
- 1...Qd3
- 2.Rf7#
- 2.Qc5#
- 2.Qe5#
- 2.Qb6#
- 2.Qb4#
- 1...Qb5
- 2.Se4#
- 2.Rf7#
- 1...Qc2
- 2.Rf7#
- 2.Qe5#
- 1...Qc3
- 2.Se4#
- 2.Rf7#
- 1...Qc7
- 2.Se4#
- 2.Qe5#
- 1...Qc8
- 2.Se4#
- 2.Qe5#
- 1...Re2
- 2.Sf7#
- 1...Rf4
- 2.Rf7#
- 2.Qe5#
- 1...Rf5
- 2.Se4#
- 2.Rf7#
- 1...Rf7
- 2.Se4#
- 2.Sxf7#
- 2.Rxf7#
- 2.Qe5#
- 1...Bg2
- 2.Rf7#
- 2.Qe5#
- 1...Bf5
- 2.Sf7#
- 2.Ra7#
- 2.Rb7#
- 2.Rf7#
- 2.Rg7#
- 2.Rxh7#
- 2.Qe5#
- 1...Be6
- 2.Se4#
- 2.Rf7#
- 1...Qxd4!
- threat
- 1.Qxc4?
- Keys
- 1.Qc3!
- threat
- 2.Rf7#
- 2.Qe5#
- 1...Qxd5+
- 2.Rxd5#
- 1...Qxa6+
- 2.Rxa6#
- 1...Qc6+
- 2.Qxc6#
- 1...Qxc3
- 2.Se4#
- 1...Rxf8
- 2.Qe5#
- 1...Bd7
- 2.Qe5#
- 1...Qe2
- 2.Qb4#
- 2.Qc5#
- 2.Qc6#
- 1...Qb5
- 2.Rf7#
- 1...Qd4
- 2.Qc6#
- 1...Qe4
- 2.Sxe4#
- 2.Qc5#
- 2.Qc6#
- 1...Qf4
- 2.Rf7#
- 2.Qc5#
- 2.Qc6#
- 1...Qc7
- 2.Se4#
- 2.Qe5#
- 1...Qc8
- 2.Se4#
- 2.Qe5#
- 1...Re2
- 2.Sf7#
- 1...Rf5
- 2.Rf7#
- 1...Rf7
- 2.Sxf7#
- 2.Rxf7#
- 2.Qe5#
- 1...Be6
- 2.Rf7#
- threat
- 1.Qc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 5
- REMOVED MATES = 14
- Sets
- Q(d);N_GUARD::S(E)
- Q(d);CHECK,OGATE,P_SPINQ(d),XP(D)::QAR1(B),XQ(d)
- Q(d);CHECK,OGATE,XP(F)::QAR(B),XQ(d)
- Q(d);N_GUARD,P_PINP(D)::S(E),XQ(d)
- Q(d);CHECK,OGATE::QAR(B)+P(D),XQ(d)
- R(a);N_GUARD::S(E)
- R(a);N_GUARD::S(E),XR(a)
- B(c);S_CUTR(a)::S(E)
- Tries
- Try
- Q(B);XQ(d)
- Threat
- DUALS(4)
- Refutation
- B(c);
- Try
- Q(B);
- Threat
- DUALS(8)
- Vars
- Q(d);CHECK,OGATE,XP(D)::QAR1(B),XQ(d)
- Q(d);CHECK,XP(F)::B(I)+R(G)
- Q(d);CHECK::B(I)+R(G)
- B(c);XQ(B)::S(E)
- Refutation
- R(a);XQ(B)
- Try
- Q(B);CHECK
- Vars
- R(a);P_SPINR(a)::S(E)
- B(c);N_GUARD,P_SPINB(c)::QAR1(B),XB(c)
- Refutation
- P(g);XQ(B)
- Try
- Q(B);CHECK
- Vars
- R(a);P_SPINR(a)::S(E)
- Refutation
- P(e);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- Q(d);CHECK,OGATE,P_SPINQ(d),XP(D)::QAR1(B),XQ(d)
- Q(d);CHECK,OGATE,XP(F)::R(C),XQ(d)
- Q(d);CHECK,OGATE::QAR(B)+P(D),XQ(d)
- R(a);XB(I)::QAB1(B)
- B(c);::QAB1(B)
- R(a);N_GUARD::S(E)
- Refutation
- Q(d);XQ(B)
- Try
- Actual
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK,OGATE,XP(D)::R1(C),XQ(d)
- Q(d);CHECK,OGATE,XP(F)::R(C),XQ(d)
- Q(d);CHECK,OGATE::QAR1(B),XQ(d)
- Q(d);N_GUARD,XQ(B)::S(E)
- R(a);XB(I)::QAB1(B)
- B(c);::QAB1(B)
- Q(d);::B(I)+R(G)
- Q(d);OGATE::QAR1(B)
- R(a);N_GUARD::S(E)
- R(a);::B(I)+R(G)
- B(c);::B(I)+R(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).