MESON Chess Problem Database
Problem Display
PID: 102831 (1q1BR1n1/pbppb2Q/N4NP1/7p/6P1/1Bk5/Pp6/3RK3 w - - 0 1)
Bettmann, Henry Wald
Magee TT, 1919
#2
11 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Be4
- 2.Sxe4#
- 1...Bd5
- 2.Sxd5#
- 1...Bxa6
- 2.Sd5#
- 1...Bc8
- 2.Se4#
- 2.Sd5#
- 1...Ba3
- 2.Re3#
- 1...Bb4
- 2.Re3#
- 1...Bd6
- 2.Re3#
- 1...Bxf6
- 2.Re3#
- 1...Bxd8
- 2.Re3#
- 1...Bf8
- 2.Re3#
- 1...c5
- 2.Ba5#
- 1...c6
- 2.Se4#
- 1...Be4
- Tries
- 1.Qh6?
- threat
- 2.Qd2#
- 2.Qe3#
- 1...Bxa6
- 2.Sd5#
- 2.Qd2#
- 1...b1Q
- 2.Qd2#
- 1...b1S
- 2.Qc1#
- 1...b1B
- 2.Qd2#
- 1...b1R
- 2.Qd2#
- 1...Be4
- 2.Sxe4#
- 2.Qd2#
- 1...Bc5
- 2.Qd2#
- 1...Sxh6!
- threat
- 1.Qxe7?
- threat
- 2.Qb4#
- 2.Qc5#
- 2.Qe3#
- 2.Qe5#
- 1...Bxa6
- 2.Se4#
- 2.Sd5#
- 1...b1Q
- 2.Qe5#
- 1...b1S
- 2.Qe5#
- 1...b1B
- 2.Qe5#
- 1...b1R
- 2.Qe5#
- 1...Bh1
- 2.Qc5#
- 2.Qe3#
- 2.Qe5#
- 1...Bg2
- 2.Qc5#
- 2.Qe3#
- 2.Qe5#
- 1...Bf3
- 2.Qc5#
- 2.Qe3#
- 2.Qe5#
- 1...Be4
- 2.Sxe4#
- 2.Qc5#
- 2.Qe5#
- 1...Bd5
- 2.Sxd5#
- 2.Qe3#
- 2.Qe5#
- 1...Bc6
- 2.Qc5#
- 2.Qe3#
- 2.Qe5#
- 1...Ba8
- 2.Qc5#
- 2.Qe3#
- 2.Qe5#
- 1...Bc8
- 2.Se4#
- 2.Sd5#
- 2.Qc5#
- 2.Qe3#
- 2.Qe5#
- 1...c5
- 2.Ba5#
- 2.Qxc5#
- 2.Qe3#
- 1...c6
- 2.Se4#
- 2.Ba5#
- 2.Qb4#
- 2.Qc5#
- 2.Qe3#
- 1...d5
- 2.Qb4#
- 2.Qc5#
- 2.Qe3#
- 1...d6
- 2.Qe3#
- 1...Sxe7!
- threat
- 1.Qg7?
- threat
- 2.Se4#
- 2.Sd5#
- 1...Bxa6
- 2.Sd5#
- 1...Bxf6
- 2.Re3#
- 1...Be4
- 2.Sxe4#
- 2.Sd5#
- 1...Bd5
- 2.Se4#
- 2.Sxd5#
- 1...d5
- 2.Se4#
- 2.Sxd5#
- 1...Sxf6!
- threat
- 1.Qh8?
- threat
- 2.Se4#
- 2.Sd5#
- 1...Bxa6
- 2.Sd5#
- 1...Bxf6
- 2.Re3#
- 1...Be4
- 2.Sxe4#
- 2.Sd5#
- 1...Bd5
- 2.Se4#
- 2.Sxd5#
- 1...d5
- 2.Se4#
- 2.Sxd5#
- 1...Sxf6!
- threat
- 1.Qh6?
- Keys
- 1.Qxh5!
- threat
- 2.Qe5#
- 1...Bxa6
- 2.Sd5#
- 1...Bxf6
- 2.Re3#
- 2.Qa5#
- 2.Qc5#
- 1...Bc5
- 2.Qxc5#
- 1...Bd6
- 2.Re3#
- 1...c5
- 2.Ba5#
- 1...c6
- 2.Se4#
- 1...d5
- 2.Qh3#
- 1...d6
- 2.Qa5#
- threat
- 1.Qxh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- B(e);N_GUARD::S(G),XB(e)
- B(e);N_GUARD,XS(F)::S(G)
- B(h);OGATE::R(K)
- B(h);OGATE,XS(G)::R(K)
- B(h);OGATE,XB(J)::R(K)
- P(f);OGATE::B(J)
- P(f);S_CUTB(e)::S(G)
- Tries
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- P(a);P_PINR(A)::QAB1(I)
- P(a);N_GUARD::QAR2(I)
- P(a);::QAB1(I)
- B(h);::QAB1(I)
- Refutation
- S(j);XQ(I)
- Try
- Q(I);XB(h)
- Threat
- DUALS(4)
- Vars
- P(a);P_PINR(A)::QAB(I)
- P(a);::QAB(I)
- P(g);::QAR2(I)
- Refutation
- S(j);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(e);XS(F)::QAB(I)+S(G),DCHECK
- B(h);OGATE,P_SPINB(h),XS(G)::R(K)
- Refutation
- S(j);P_SPINS(j),XS(G)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(e);XS(F)::QAB(I)+S(G),DCHECK
- B(h);OGATE,P_SPINB(h),XS(G)::R(K)
- Refutation
- S(j);P_SPINS(j),XS(G)
- Try
- Actual
- Q(I);XP(c)
- Threat
- QAB(I)
- Vars
- B(e);N_GUARD,XS(F)::S(G)
- B(h);N_GUARD::QAR2(I),XB(h)
- B(h);OGATE::R(K)
- P(f);OGATE::B(J)
- P(f);S_CUTB(e)::S(G)
- P(g);S_CUTB(e)::QAR(I)
- P(g);S_CUTB(h)::QAB(I)
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).