MESON Chess Problem Database
Problem Display
PID: 180857 (7k/2RPpKp1/6P1/5P2/4QpP1/1p6/1nrrp3/q7 w - - 0 1)
Bouttier, Pierre
Bulletin Ouvrier des Echecs, 1952
#2
7 + 10
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qa8#
- 1...Qc1
- 2.Qa8#
- 1...Qd1
- 2.Qa8#
- 1...Qe1
- 2.Qa8#
- 1...Qf1
- 2.Qa8#
- 1...Qg1
- 2.Qa8#
- 1...Qh1
- 2.Qxh1#
- 1...Qa2
- 2.Qh1#
- 1...Qa3
- 2.Qh1#
- 1...Qa4
- 2.Qh1#
- 1...Qa5
- 2.Qh1#
- 1...Qa6
- 2.Qh1#
- 1...Qa7
- 2.Qh1#
- 1...Qa8
- 2.Qxa8#
- 1...Sd1
- 2.Qh1#
- 1...Sd3
- 2.d8Q#
- 2.d8R#
- 1...Sa4
- 2.Qa8#
- 1...Sc4
- 2.Rc8#
- 1...Qb1
- Tries
- 1.Qd3?
- threat
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Rxc7
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Sxd3
- 2.d8Q#
- 2.d8R#
- 1...e1Q
- 2.d8Q#
- 2.d8R#
- 1...e1S
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...e1B
- 2.d8Q#
- 2.d8R#
- 1...e1R
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qb1
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qc1
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qd1
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qe1
- 2.d8Q#
- 2.d8R#
- 1...Qf1
- 2.d8Q#
- 2.d8R#
- 1...Qg1
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qh1
- 2.d8Q#
- 2.d8R#
- 1...Qa2
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qa3
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qa4
- 2.Qh3#
- 1...Qa5
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qa6
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qa7
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Qa8
- 2.Qh3#
- 1...Rc1
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Rc3
- 2.d8Q#
- 2.d8R#
- 1...Rc4
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Rc5
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Rc6
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Rd1
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Sd1
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Sa4
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Sc4
- 2.Rc8#
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...f3
- 2.d8Q#
- 2.d8R#
- 1...e5
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...e6
- 2.Qh3#
- 2.d8Q#
- 2.d8R#
- 1...Rxd3!
- threat
- 1.Qd5?
- threat
- 2.d8Q#
- 2.d8R#
- 1...Rxc7
- 2.d8Q#
- 2.d8R#
- 1...e1Q
- 2.d8Q#
- 2.d8R#
- 1...e1S
- 2.d8Q#
- 2.d8R#
- 1...e1B
- 2.d8Q#
- 2.d8R#
- 1...e1R
- 2.d8Q#
- 2.d8R#
- 1...Qb1
- 2.Qa8#
- 2.d8Q#
- 2.d8R#
- 1...Qc1
- 2.Qa8#
- 2.d8Q#
- 2.d8R#
- 1...Qd1
- 2.Qa8#
- 2.d8Q#
- 2.d8R#
- 1...Qe1
- 2.Qa8#
- 2.d8Q#
- 2.d8R#
- 1...Qf1
- 2.Qa8#
- 2.d8Q#
- 2.d8R#
- 1...Qg1
- 2.Qa8#
- 2.d8Q#
- 2.d8R#
- 1...Qh1
- 2.Qxh1#
- 2.d8Q#
- 2.d8R#
- 1...Qa2
- 2.Qh1#
- 2.d8Q#
- 2.d8R#
- 1...Qa3
- 2.Qh1#
- 2.d8Q#
- 2.d8R#
- 1...Qa4
- 2.Qh1#
- 1...Qa5
- 2.Qh1#
- 2.d8Q#
- 2.d8R#
- 1...Qa6
- 2.Qh1#
- 2.d8Q#
- 2.d8R#
- 1...Qa7
- 2.Qh1#
- 2.d8Q#
- 2.d8R#
- 1...Qa8
- 2.Qxa8#
- 1...Rc1
- 2.d8Q#
- 2.d8R#
- 1...Rc3
- 2.d8Q#
- 2.d8R#
- 1...Rc4
- 2.d8Q#
- 2.d8R#
- 1...Rc5
- 2.d8Q#
- 2.d8R#
- 1...Rc6
- 2.d8Q#
- 2.d8R#
- 1...Rd1
- 2.d8Q#
- 2.d8R#
- 1...Rd3
- 2.d8Q#
- 2.d8R#
- 1...Rd4
- 2.d8Q#
- 2.d8R#
- 1...Sd1
- 2.Qh1#
- 2.d8Q#
- 2.d8R#
- 1...Sd3
- 2.d8Q#
- 2.d8R#
- 1...Sa4
- 2.Qa8#
- 2.d8Q#
- 2.d8R#
- 1...Sc4
- 2.Rc8#
- 2.d8Q#
- 2.d8R#
- 1...f3
- 2.d8Q#
- 2.d8R#
- 1...e5
- 2.d8Q#
- 2.d8R#
- 1...e6
- 2.d8Q#
- 2.d8R#
- 1...Rxd5!
- threat
- 1.Qd4?
- threat
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Rxc7
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...e1Q
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...e1S
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...e1B
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...e1R
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qb1
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qc1
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qd1
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qe1
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qf1
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qg1
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qh1
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qa2
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qa3
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qa4
- 2.Qxg7#
- 1...Qa5
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qa6
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qa7
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Qa8
- 2.Qxg7#
- 1...Rc1
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Rc3
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Rc4
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Rc5
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Rc6
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Rd1
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Rd3
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Sd1
- 2.d8Q#
- 2.d8R#
- 1...Sd3
- 2.d8Q#
- 2.d8R#
- 1...Sa4
- 2.d8Q#
- 2.d8R#
- 1...Sc4
- 2.Rc8#
- 2.d8Q#
- 2.d8R#
- 1...f3
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...e5
- 2.d8Q#
- 2.d8R#
- 1...e6
- 2.Qxg7#
- 2.d8Q#
- 2.d8R#
- 1...Rxd4!
- threat
- 1.Qxe7?
- threat
- 2.Qh4#
- 2.Qd8#
- 2.Qf8#
- 2.Qe8#
- 1...e1Q
- 2.Qf8#
- 1...e1B
- 2.Qd8#
- 2.Qf8#
- 2.Qe8#
- 1...e1R
- 2.Qh4#
- 2.Qf8#
- 1...Qe1
- 2.Qd8#
- 2.Qf8#
- 2.Qe8#
- 1...Qh1
- 2.Qd8#
- 2.Qf8#
- 2.Qe8#
- 1...Qa3
- 2.Qh4#
- 1...Qa8
- 2.Qh4#
- 1...Rxd7!
- threat
- 1.Qd3?
- Keys
- 1.f6!
- threat
- 2.fxg7#
- 1...exf6
- 2.Qe8#
- 1...gxf6
- 2.g7#
- 1...Sd1
- 2.Qh1#
- 1...Sd3
- 2.d8Q#
- 2.d8R#
- 1...Sa4
- 2.Qa8#
- 1...Sc4
- 2.Rc8#
- threat
- 1.f6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- Q(a);N_GUARD::QAB1(A)
- Q(a);N_GUARD::QAB(A),XQ(a)
- Q(a);N_GUARD::QAB(A)
- Q(a);N_GUARD::QAB1(A),XQ(a)
- S(b);S_CUTQ(a)::QAB(A)
- S(b);S_CUTR(d)::P=Q
- S(b);S_CUTQ(a)::QAB1(A)
- S(b);S_CUTR(c)::R(E)
- Tries
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(b);XQ(A)::P=Q
- P(e);::P=Q
- Q(a);::P=Q
- Q(a);::QAR(A)
- Q(a);SBLOCK::QAR(A)
- R(c);::P=Q
- P(g);::P=Q
- Refutation
- R(d);XQ(A)
- Try
- Q(A);
- Threat
- P=Q
- Vars
- R(c);XR(E)::P=Q
- P(e);::P=Q
- Q(a);N_GUARD::QAB(A)
- Q(a);N_GUARD::QAB1(A),XQ(a)
- R(c);::P=Q
- R(d);::P=Q
- S(b);::P=Q
- P(g);::P=Q
- P(h);::P=Q
- Refutation
- R(d);XQ(A)
- Try
- Q(A);P_PINP(i)
- Threat
- DUALS(3)
- Vars
- Q(a);::QAB1(A),XP(i)
- Q(a);SBLOCK::QAB1(A),XP(i)
- S(b);::P=Q
- P(h);N_SPINP(i)::P=Q
- Refutation
- R(d);N_SPINP(i),XQ(A)
- Try
- Q(A);XP(h)
- Threat
- DUALS(4)
- Vars
- P(e);::QAR2(A)
- Q(a);::QAR(A)
- Q(a);SBLOCK::QAR(A)
- Refutation
- R(d);P_PINQ(A),XP(F)
- Try
- Actual
- P(C);
- Threat
- P(C),XP(i)
- Vars
- P(h);OGATE,XP(C)::QAR(A)
- P(i);OGATE,XP(C)::P(D)
- S(b);S_CUTQ(a)::QAB(A)
- S(b);S_CUTR(d)::P=Q
- S(b);S_CUTQ(a)::QAB1(A)
- S(b);S_CUTR(c)::R(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).