MESON Chess Problem Database
Problem Display
PID: 24902 (1nR4K/4NQP1/8/p1p5/Pk4rp/pBpp3r/p6q/n1N3bb w - - 0 1)
Massmann, Wilhelm Karl Heinrich
Comm., Teplitz-Schonauer Anzeiger, 1921-1922
#2
8 + 15
| 56 | The Problemist | 1938 |
SOLUTION
- SOUND
- Sets
- 1...Qg3
- 2.Sxa2#
- 1...Qf4
- 2.Sxa2#
- 1...Qe5
- 2.Sxa2#
- 1...Qd6
- 2.Sxa2#
- 1...Qc7
- 2.Sxa2#
- 1...Rf3
- 2.Sd5#
- 1...Rg2
- 2.Sd5#
- 2.Qc4#
- 1...Rg3
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Re4
- 2.Sd5#
- 1...Rg5
- 2.Qc4#
- 1...Rg6
- 2.Qc4#
- 1...Rxg7
- 2.Qc4#
- 1...Bf2
- 2.Sxa2#
- 1...Be3
- 2.Sxd3#
- 1...Bd4
- 2.Qc4#
- 1...Bg2
- 2.Sxa2#
- 1...Bf3
- 2.Sxd3#
- 1...Be4
- 2.Qc4#
- 1...Bd5
- 2.Sxd5#
- 1...Sc2
- 2.Sxa2#
- 1...Sxb3
- 2.Qxb3#
- 1...c2
- 2.Sxa2#
- 1...d2
- 2.Sxa2#
- 1...Qg3
- Tries
- 1.Sc6+?
- 1...Sxc6
- 2.Qb7#
- 1...Bxc6!
- 1...Sxc6
- 1.Rxb8+?
- 1...Bb7
- 2.Sd5#
- 2.Sc6#
- 2.Rxb7#
- 1...Qxb8+!
- 1...Bb7
- 1.Sc6+?
- Keys
- 1.Qd5!
- 1...Rxg7
- 2.Qc4#
- 1...Bxd5
- 2.Sxd5#
- 1...Sxb3
- 2.Qxb3#
- 1...c2
- 2.Sxa2#
- 1...Qb2
- 2.Rxb8#
- 1...Qg3
- 2.Sxa2#
- 1...Qf4
- 2.Sxa2#
- 1...Qe5
- 2.Sxa2#
- 1...Qd6
- 2.Sxa2#
- 1...Qc7
- 2.Sxa2#
- 1...Qc2
- 2.Rxb8#
- 1...Qd2
- 2.Rxb8#
- 1...Qe2
- 2.Rxb8#
- 1...Qf2
- 2.Rxb8#
- 1...Qg2
- 2.Rxb8#
- 1...Re3
- 2.Qxc5#
- 1...Rf3
- 2.Qb7#
- 1...Rhg3
- 2.Rxb8#
- 1...Rg2
- 2.Qc4#
- 2.Qb7#
- 1...Rgg3
- 2.Rxb8#
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Rd4
- 2.Qxc5#
- 1...Re4
- 2.Qb7#
- 1...Rf4
- 2.Rxb8#
- 1...Rg5
- 2.Qc4#
- 1...Rg6
- 2.Qc4#
- 1...Bf2
- 2.Sxa2#
- 1...Be3
- 2.Sxd3#
- 1...Bd4
- 2.Qc4#
- 1...Bg2
- 2.Sxa2#
- 1...Bf3
- 2.Sxd3#
- 1...Be4
- 2.Qc4#
- 1...Sc2
- 2.Sxa2#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd7
- 2.Sc6#
- 1...d2
- 2.Sxa2#
- 1...c4
- 2.Qb5#
- 1...Rxg7
- 1.Qd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 14
- REMOVED MATES = 1
- Sets
- Q(e);N_GUARD::S(A),XP(d)
- Q(e);N_GUARD,P_PINP(F)::S(A),XP(d)
- R(i);S_CUTB(c)::S(D)
- R(k);N_GUARD::QAR1(E)
- R(k);N_GUARD::QAR1(E),XR(k)
- R(k);S_CUTB(c)::S(D)
- R(k);N_GUARD,XP(F)::QAR1(E)
- B(b);S_CUTQ(e)::S(A),XP(d)
- B(b);S_CUTR(i)::S(A),XP(h)
- B(b);P_PINP(F),S_CUTR(k)::QAR1(E)
- B(c);S_CUTQ(e)::S(A),XP(d)
- B(c);S_CUTR(i)::S(A),XP(h)
- B(c);S_CUTR(k)::QAR1(E)
- B(c);N_GUARD::S(D),XB(c)
- S(a);S_CUTQ(e)::S(A),XP(d)
- S(a);OGATE,XB(B)::QAR1(E),XS(a)
- P(g);S_CUTQ(e)::S(A),XP(d)
- P(h);S_CUTQ(e)::S(A),XP(d)
- Tries
- Try
- S(D);CHECK
- Vars
- S(o);XS(D)::QAR(E)
- Refutation
- B(c);XS(D)
- Try
- R(G);CHECK,XS(o)
- Refutation
- Q(e);CHECK,XR(G)
- Try
- Actual
- Q(E);
- Vars
- R(k);N_GUARD,XP(F)::QAR1(E)
- B(c);XQ(E)::S(D),XB(c)
- S(a);OGATE,XB(B)::QAR1(E),XS(a)
- P(g);S_CUTQ(e)::S(A),XP(d)
- Q(e);N_GUARD::R(G),XS(o)
- Q(e);N_GUARD::S(A),XP(d)
- Q(e);N_GUARD,P_PINP(F)::S(A),XP(d)
- R(i);S_CUTB(b)::QAB1(E),XP(n)
- R(i);S_CUTB(c)::QAR(E)
- R(i);S_CUTQ(e)::R(G),XS(o)
- R(k);N_GUARD::QAR1(E),XR(k)
- R(k);S_CUTB(b)::QAB1(E),XP(n)
- R(k);S_CUTB(c)::QAR(E)
- R(k);S_CUTQ(e)::R(G),XS(o)
- R(k);N_GUARD::QAR1(E)
- B(b);S_CUTQ(e)::S(A),XP(d)
- B(b);S_CUTR(i)::S(A),XP(h)
- B(b);P_PINP(F),S_CUTR(k)::QAR1(E)
- B(c);S_CUTQ(e)::S(A),XP(d)
- B(c);S_CUTR(i)::S(A),XP(h)
- B(c);S_CUTR(k)::QAR1(E)
- S(a);S_CUTQ(e)::S(A),XP(d)
- S(o);N_GUARD::S(D)
- S(o);N_GUARD::S(D),XS(o)
- P(h);S_CUTQ(e)::S(A),XP(d)
- P(n);OGATE::QAR1(E)
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).