MESON Chess Problem Database
Problem Display
PID: 211848 (5B2/1K6/3pP1p1/N1Pkp1p1/2RP2B1/8/n1Q5/1N6 w - - 0 1)
Hassberg, Eric Manfred
Smedley, Don A
The Problemist, 1986
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sc1
- Tries
- 1.Sd2?
- threat
- 2.Qe4#
- 1...e4
- 2.Qxe4#
- 1...Sc3!
- threat
- 1.Sc6?
- threat
- 2.Se7#
- 1...exd4
- 2.Rxd4#
- 1...dxc5
- 2.Rxc5#
- 1...Sc3!
- threat
- 1.Bf3+?
- 1...e4
- 2.Qxe4#
- 1...Kxe6!
- 1...e4
- 1.Bf5?
- threat
- 2.Qe4#
- 1...Sc3
- 2.Sxc3#
- 1...e4
- 2.Qxe4#
- 1...gxf5!
- threat
- 1.Bxd6?
- 1...exd4
- 2.Qg2#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...e4!
- 1...exd4
- 1.Qd1?
- 1...Ke4
- 2.Qf3#
- 1...exd4
- 2.Qxd4#
- 1...dxc5
- 2.dxc5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...e4!
- 1...Ke4
- 1.Qd3?
- 1...exd4
- 2.Qxd4#
- 1...dxc5
- 2.Rxc5#
- 2.dxc5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...e4!
- 1...exd4
- 1.Qf5?
- threat
- 2.Bf3#
- 1...Sc3
- 2.Sxc3#
- 1...gxf5!
- threat
- 1.Qxg6?
- 1...exd4
- 2.Qf5#
- 1...e4
- 2.Qf5#
- 2.Qxg5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...dxc5!
- 1...exd4
- 1.Qe2?
- 1...exd4
- 2.Bf3#
- 1...dxc5
- 2.Qxe5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...e4!
- 1...exd4
- 1.cxd6?
- 1...exd4
- 2.Rc5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...e4!
- 1...exd4
- 1.Sd2?
- Keys
- 1.Qd2!
- 1...Ke4
- 2.d5#
- 1...exd4
- 2.Qxd4#
- 1...dxc5
- 2.dxc5#
- 1...e4
- 2.Qxg5#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Ke4
- 1.Qd2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Tries
- Try
- S(A);
- Threat
- QAB1(B)
- Vars
- P(c);::QAB1(B),XP(c)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- S(F)
- Vars
- P(c);OGATE,XP(D)::R1(C),XP(c)
- P(e);OGATE,XP(G)::R1(C),XP(e)
- Refutation
- S(a);
- Try
- B(E);CHECK
- Vars
- P(c);P_SPINP(c)::QAB1(B),XP(c)
- Refutation
- K(b);S_FLIGHT,XP(H)
- Try
- B(E);
- Threat
- QAB1(B)
- Vars
- S(a);N_GUARD::S(A),XS(a)
- P(c);::QAB1(B),XP(c)
- Refutation
- P(f);XB(E)
- Try
- B(J);XP(e)
- Vars
- P(c);N_GUARD,XP(D)::QAB(B)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(c);
- Try
- Q(B);
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(c);OGATE,P_SPINP(c),XP(D)::QAR1(B),XP(c)
- P(e);OGATE,XP(G)::QAR(B)+P(D),XP(e)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(c);
- Try
- Q(B);
- Vars
- P(c);OGATE,P_SPINP(c),XP(D)::QAR1(B),XP(c)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(c);
- Try
- Q(B);P_PINP(c)
- Threat
- B(E)
- Vars
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(f);N_SPINP(c),XQ(B)
- Try
- Q(B);XP(f)
- Vars
- P(c);OGATEB,XP(D)::QAR2(B)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(e);XP(G)
- Try
- Q(B);
- Vars
- P(c);N_GUARD,XP(D)::B(E)
- P(e);N_GUARD,XP(G)::QAR1(B),XP(c)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(c);
- Try
- P(G);XP(e)
- Vars
- P(c);SBLOCK,XP(D)::R1(C)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(c);
- Try
- Actual
- Q(B);
- Vars
- K(b);OGATE,S_FLIGHT::R(C)+P(D)
- P(c);OGATE,P_SPINP(c),XP(D)::QAR1(B),XP(c)
- P(e);OGATE,XP(G)::QAR(B)+P(D),XP(e)
- P(c);OGATEB,SBLOCK::QAR(B),XP(d)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
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).