MESON Chess Problem Database
Problem Display
PID: 18981 (Bb3n2/6pN/1PK1p2p/p1P4R/1q2k1Pn/1Q4P1/3R1P2/Bb2rN2 w - - 0 1)
Wainwright, Joseph CJ
American Chess Bulletin, 1911
#2
13 + 11
| 2145 | New York Post | 1947 |
| 268 | Chess Life | 1960 |
SOLUTION
- SOUND
- Sets
- 1...Qxd2
- 2.Sxd2#
- 1...Qa3
- 2.Kb5#
- 2.Rd4#
- 1...Qc3
- 2.Kb5#
- 1...Qxc5+
- 2.Kxc5#
- 1...Qd4
- 2.Rxd4#
- 1...Qb5+
- 2.Kxb5#
- 1...Qxb6+
- 2.Kxb6#
- 1...Rc1
- 2.Re2#
- 2.Qe3#
- 1...Rd1
- 2.Re2#
- 2.Qe3#
- 1...Rxf1
- 2.Re2#
- 2.Qe3#
- 1...Re2
- 2.Rxe2#
- 1...Re3
- 2.Qxe3#
- 1...Ba2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Be5
- 2.Rxe5#
- 1...Bd6
- 2.Kxd6#
- 1...Ba7
- 2.Kd6#
- 2.Kc7#
- 2.Re5#
- 1...Bc7
- 2.Kxc7#
- 1...Sg2
- 2.f3#
- 1...Sf5
- 2.f3#
- 1...Shg6
- 2.f3#
- 1...Sfg6
- 2.Kd7#
- 1...Sd7
- 2.Kxd7#
- 1...Sxh7
- 2.Kd7#
- 1...e5
- 2.Qd5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Qxd2
- Tries
- 1.Qxe6+?
- 1...Be5
- 2.Qd5#
- 1...Sxe6
- 2.Kd7#
- 1...Kf3!
- 1...Be5
- 1.Qxb4+?
- 1...axb4
- 2.Kb5#
- 1...Kf3!
- 1...axb4
- 1.Qxe6+?
- Keys
- 1.Rf5!
- 1...Qxc5+
- 2.Kxc5#
- 1...Qa4+
- 2.Qxa4#
- 1...Qb5+
- 2.Kxb5#
- 1...Qxb6+
- 2.Kxb6#
- 1...Qxd2
- 2.Sxd2#
- 1...Qxb3
- 2.Rd4#
- 1...Rxf1
- 2.Re2#
- 2.Qe3#
- 1...Bxg3
- 2.Sxg3#
- 1...Sxf5
- 2.f3#
- 1...Sxh7
- 2.Kd7#
- 1...exf5
- 2.Qd5#
- 1...Qa3
- 2.Kb5#
- 2.Rd4#
- 2.Qc4#
- 1...Qc3
- 2.Kb5#
- 1...Qc4
- 2.Qxc4#
- 1...Qd4
- 2.Rxd4#
- 1...Rc1
- 2.Re2#
- 2.Qe3#
- 1...Rd1
- 2.Re2#
- 2.Qe3#
- 1...Re2
- 2.Rxe2#
- 1...Re3
- 2.Qxe3#
- 1...Ba2
- 2.Qc2#
- 2.Qd3#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Bf4
- 2.Rxf4#
- 1...Be5
- 2.Rxe5#
- 1...Bd6
- 2.Kxd6#
- 1...Ba7
- 2.Kd6#
- 2.Kc7#
- 2.Rf4#
- 2.Re5#
- 1...Bc7
- 2.Kxc7#
- 1...Sg2
- 2.Qf3#
- 2.f3#
- 1...Sf3
- 2.Qxf3#
- 1...Shg6
- 2.Qf3#
- 2.f3#
- 1...Sfg6
- 2.Kd7#
- 1...Sd7
- 2.Kxd7#
- 1...a4
- 2.Qxb4#
- 1...e5
- 2.Qd5#
- 1...h5
- 2.Sg5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Qxc5+
- 1.Rf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 3
- Sets
- Q(c);XR(C)::S(B),XQ(c)
- Q(c);P_PINP(H)::B(M)+K(K)
- Q(c);CHECK,XP(H)::B(M)+K(K),XQ(c)
- Q(c);N_GUARD::R1(C),XQ(c)
- Q(c);CHECK::B(M)+K(K),XQ(c)
- Q(c);CHECK,XP(J)::B(M)+K(K),XQ(c)
- R(b);N_GUARD::R(C),XR(b)
- R(b);N_GUARD::QAR1(E),XR(b)
- B(a);N_GUARD::QAB1(E)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(j);N_GUARD::R1(I),XB(j)
- B(j);::B(M)+K(K),XB(j)
- S(e);N_GUARD::P(D)
- S(k);::B(M)+K(K)
- S(k);::B(M)+K(K),XS(k)
- S(k);XS(L)::B(M)+K(K)
- P(g);N_GUARD::QAB1(E)
- P(i);N_GUARD::S(L)
- Tries
- Try
- Q(E);CHECK,XP(g)
- Vars
- B(j);P_SPINB(j)::QAB1(E)
- S(k);XQ(E)::B(M)+K(K)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(E);CHECK,XQ(c)
- Vars
- P(f);XQ(E)::B(M)+K(K)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- R(I);
- Vars
- Q(c);CHECK,XP(H)::B(M)+K(K),XQ(c)
- Q(c);CHECK,OGATEB::QAR(E),XQ(c)
- Q(c);CHECK::B(M)+K(K),XQ(c)
- Q(c);CHECK,XP(J)::B(M)+K(K),XQ(c)
- Q(c);XR(C)::S(B),XQ(c)
- Q(c);N_GUARD,XQ(E)::R1(C)
- B(j);XP(F)::S(B),XB(j)
- S(e);N_GUARD,XR(I)::P(D)
- S(k);XS(L)::B(M)+K(K)
- P(g);N_GUARD,XR(I)::QAB1(E)
- Q(c);P_PINP(H)::B(M)+K(K)
- Q(c);N_GUARD,P_PINP(H)::QAR2(E),XQ(c)
- Q(c);N_GUARD::R1(C),XQ(c)
- R(b);N_GUARD::R(C),XR(b)
- R(b);N_GUARD::QAR1(E),XR(b)
- B(a);N_GUARD::QAB(E),XB(a)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(j);N_GUARD::R1(I),XB(j)
- B(j);::B(M)+K(K),XB(j)
- S(e);N_GUARD::QAB1(E),XS(e)
- S(k);::B(M)+K(K)
- S(k);::B(M)+K(K),XS(k)
- P(f);N_GUARD::QAR(E),XQ(c)
- P(g);N_GUARD::QAB1(E)
- P(h);N_GUARD::S(L)
- P(i);N_GUARD::S(L)
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).