MESON Chess Problem Database
Problem Display
PID: 16418 (5nqn/1K1p3b/3P3b/5p2/1B1Qpk1P/4NP2/6pP/6N1 w - - 0 1)
Wenman, Francis Percival (aka Percy Wenman)
Fifty Two-Move Problems, 1940
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Qb3
- 2.Sxg2#
- 1...Qc4
- 2.Sxg2#
- 1...Qd5+
- 2.Sxd5#
- 1...Qe6
- 2.Sxg2#
- 1...Qf7
- 2.Sxg2#
- 1...Qg3
- 2.Sd5#
- 1...Qg4
- 2.Sd5#
- 1...Qg5
- 2.Sd5#
- 1...Qg6
- 2.Sd5#
- 1...Qg7
- 2.Sd5#
- 1...Bg5
- 2.Sxg2#
- 1...Bg7
- 2.Sxg2#
- 1...Bg6
- 2.Sxg2#
- 1...Se6
- 2.Sd5#
- 1...Sfg6
- 2.Sxg2#
- 1...Shg6
- 2.Sxg2#
- 1...Sf7
- 2.Sd5#
- 1...Qb3
- Tries
- 1.Kb6?
- 1...Qb3
- 2.Sxg2#
- 1...Qc4
- 2.Sxg2#
- 1...Qd5
- 2.Sxg2#
- 2.Sxd5#
- 1...Qe6
- 2.Sxg2#
- 1...Qf7
- 2.Sxg2#
- 1...Qg3
- 2.Sd5#
- 1...Qg4
- 2.Sd5#
- 1...Qg5
- 2.Sd5#
- 1...Qg6
- 2.Sd5#
- 1...Qg7
- 2.Sd5#
- 1...Bg5
- 2.Sxg2#
- 1...Bg7
- 2.Sxg2#
- 1...Bg6
- 2.Sxg2#
- 1...Se6
- 2.Sd5#
- 1...Sfg6
- 2.Sxg2#
- 1...Shg6
- 2.Sxg2#
- 1...Sf7
- 2.Sd5#
- 1...Qa2!
- 1...Qb3
- 1.Ka7?
- 1...Qb3
- 2.Sxg2#
- 1...Qc4
- 2.Sxg2#
- 1...Qd5
- 2.Sxg2#
- 2.Sxd5#
- 1...Qe6
- 2.Sxg2#
- 1...Qf7
- 2.Sxg2#
- 1...Qg3
- 2.Sd5#
- 1...Qg4
- 2.Sd5#
- 1...Qg5
- 2.Sd5#
- 1...Qg6
- 2.Sd5#
- 1...Qg7
- 2.Sd5#
- 1...Bg5
- 2.Sxg2#
- 1...Bg7
- 2.Sxg2#
- 1...Bg6
- 2.Sxg2#
- 1...Se6
- 2.Sd5#
- 1...Sfg6
- 2.Sxg2#
- 1...Shg6
- 2.Sxg2#
- 1...Sf7
- 2.Sd5#
- 1...Qa2+!
- 1...Qb3
- 1.Sc4?
- threat
- 2.Bd2#
- 2.Qe3#
- 2.Qe5#
- 1...Qxc4
- 2.Bd2#
- 1...Qe6
- 2.Bd2#
- 2.Qe3#
- 1...Qg7
- 2.Bd2#
- 2.Qe3#
- 1...Bg7
- 2.Bd2#
- 2.Qe3#
- 1...Sfg6
- 2.Bd2#
- 2.Qe3#
- 1...Shg6
- 2.Bd2#
- 2.Qe3#
- 1...Sf7
- 2.Bd2#
- 2.Qe3#
- 1...Qd5+!
- threat
- 1.Be1?
- 1...Qd5+
- 2.Sxd5#
- 1...Qa2
- 2.Bg3#
- 1...Qc4
- 2.Sxg2#
- 2.Bg3#
- 1...Qe6
- 2.Sxg2#
- 2.Bg3#
- 1...Qf7
- 2.Sxg2#
- 2.Bg3#
- 1...Qg3
- 2.Sd5#
- 2.Bxg3#
- 2.hxg3#
- 1...Qg4
- 2.Sd5#
- 1...Qg5
- 2.Sd5#
- 1...Qg6
- 2.Sd5#
- 1...Qg7
- 2.Sd5#
- 1...Bg5
- 2.Sxg2#
- 2.Bg3#
- 1...Bg7
- 2.Sxg2#
- 2.Bg3#
- 1...Bg6
- 2.Sxg2#
- 2.Bg3#
- 1...Se6
- 2.Sd5#
- 1...Sfg6
- 2.Sxg2#
- 2.Bg3#
- 1...Shg6
- 2.Sxg2#
- 2.Bg3#
- 1...Sf7
- 2.Sd5#
- 1...Qb3+!
- 1...Qd5+
- 1.Bd2?
- threat
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sxg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sd5#
- 1...Qd5+
- 2.Sxd5#
- 1...Qa2
- 2.Sc2#
- 2.Sxg2#
- 2.Sd5#
- 1...Qc4
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sxg2#
- 2.Sxc4#
- 2.Sg4#
- 2.Sd5#
- 1...Qg4
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sxg2#
- 2.Sc4#
- 2.Sxg4#
- 2.Sd5#
- 1...Qb3+!
- threat
- 1.Qc3?
- 1...Qd5+
- 2.Sxd5#
- 1...exf3
- 2.Qd4#
- 1...Qb3
- 2.Sxg2#
- 1...Qc4
- 2.Sxg2#
- 1...Qe6
- 2.Sxg2#
- 1...Qf7
- 2.Sxg2#
- 1...Qg3
- 2.Sd5#
- 1...Qg4
- 2.Sd5#
- 1...Qg5
- 2.Sd5#
- 1...Qg6
- 2.Sd5#
- 1...Qg7
- 2.Sd5#
- 1...Bg5
- 2.Sxg2#
- 1...Bg7
- 2.Sxg2#
- 1...Bg6
- 2.Sxg2#
- 1...Se6
- 2.Sd5#
- 1...Sfg6
- 2.Sxg2#
- 1...Shg6
- 2.Sxg2#
- 1...Sf7
- 2.Sd5#
- 1...Qa2!
- 1...Qd5+
- 1.Kb6?
- Keys
- 1.Qb2!
- 1...Qd5+
- 2.Sxd5#
- 1...Kxe3
- 2.Qd2#
- 1...exf3
- 2.Qd4#
- 1...Qa2
- 2.Sxg2#
- 1...Qb3
- 2.Sxg2#
- 1...Qc4
- 2.Sxg2#
- 1...Qe6
- 2.Sxg2#
- 1...Qf7
- 2.Sxg2#
- 1...Qg3
- 2.Sd5#
- 1...Qg4
- 2.Sd5#
- 1...Qg5
- 2.Sd5#
- 1...Qg6
- 2.Sd5#
- 1...Qg7
- 2.Sd5#
- 1...Bg5
- 2.Sxg2#
- 1...Bg7
- 2.Sxg2#
- 1...Bg6
- 2.Sxg2#
- 1...Se6
- 2.Sd5#
- 1...Sfg6
- 2.Sxg2#
- 1...Shg6
- 2.Sxg2#
- 1...Sf7
- 2.Sd5#
- 1...Qd5+
- 1.Qb2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(i);N_GUARD,P_PINB(E)::S(C),XP(a)
- Q(i);N_GUARD::S(C),XP(a)
- Q(i);CHECK,N_GUARD::S(C),XQ(i)
- Q(i);N_GUARD::S(C)
- B(e);S_CUTQ(i)::S(C),XP(a)
- B(g);S_CUTQ(i)::S(C),XP(a)
- S(h);S_CUTQ(i)::S(C)
- S(h);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- Q(i);N_GUARD,P_PINB(E)::S(C),XP(a)
- Q(i);N_GUARD::S(C),XP(a)
- Q(i);N_GUARD,P_PINP(H)::S(C),XP(a)
- Q(i);N_GUARD::S(C)
- Q(i);N_GUARD,P_PINP(H)::S(C)
- B(e);S_CUTQ(i)::S(C),XP(a)
- B(g);S_CUTQ(i)::S(C),XP(a)
- S(h);S_CUTQ(i)::S(C)
- S(h);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C)
- Refutation
- Q(i);
- Try
- K(I);P-FLIGHT
- Vars
- Q(i);N_GUARD::S(C),XP(a)
- Q(i);N_GUARD::S(C)
- B(e);S_CUTQ(i)::S(C),XP(a)
- B(g);S_CUTQ(i)::S(C),XP(a)
- S(h);S_CUTQ(i)::S(C)
- S(h);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C)
- Refutation
- Q(i);CHECK
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(i);XS(C)::B(E)
- Refutation
- Q(i);CHECK
- Try
- B(E);
- Vars
- Q(i);CHECK,N_GUARD::S(C),XQ(i)
- Q(i);N_GUARD::B(E)
- Q(i);N_GUARD::S(C)
- S(h);S_CUTQ(i)::S(C)
- S(j);S_CUTQ(i)::S(C)
- Refutation
- Q(i);CHECK
- Try
- B(E);
- Threat
- DUALS(7)
- Vars
- Q(i);CHECK::B(E)+S(C),DCHECK,XQ(i)
- Refutation
- Q(i);CHECK
- Try
- Q(F);N_PINP(b)
- Vars
- Q(i);CHECK,N_GUARD::S(C),XQ(i)
- P(b);OGATEB,XP(D)::QAR2(F)
- Q(i);N_GUARD,P_PINB(E)::S(C),XP(a)
- Q(i);N_GUARD::S(C),XP(a)
- Q(i);N_GUARD::S(C)
- B(e);S_CUTQ(i)::S(C),XP(a)
- B(g);S_CUTQ(i)::S(C),XP(a)
- S(h);S_CUTQ(i)::S(C)
- S(h);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C)
- Refutation
- Q(i);
- Try
- Actual
- Q(F);N_PINP(b)
- Vars
- Q(i);CHECK,N_GUARD::S(C),XQ(i)
- K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
- P(b);OGATEB,XP(D)::QAR2(F)
- Q(i);N_GUARD::S(C),XP(a)
- Q(i);N_GUARD,P_PINB(E)::S(C),XP(a)
- Q(i);N_GUARD::S(C)
- B(e);S_CUTQ(i)::S(C),XP(a)
- B(g);S_CUTQ(i)::S(C),XP(a)
- S(h);S_CUTQ(i)::S(C)
- S(h);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C),XP(a)
- S(j);S_CUTQ(i)::S(C)
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).