MESON Chess Problem Database
Problem Display
PID: 41886 (8/q3Bp1b/2R1p3/pP1k4/p2p1Q1p/1r1p4/B1NRNK2/8 w - - 0 1)
Rice, John Michael
Schach-Aktiv, 2002
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Qc5
- 2.Rxc5#
- 1...Qb8
- 2.Rc5#
- 2.Qxd4#
- 1...Qa6
- 2.Rc5#
- 2.Qxd4#
- 1...Qb7
- 2.Rc5#
- 2.Qxd4#
- 1...Qc7
- 2.Qxd4#
- 1...Qd7
- 2.Rc5#
- 2.Qxd4#
- 1...Qxe7
- 2.Qxd4#
- 1...Qa8
- 2.Rc5#
- 2.Qxd4#
- 1...Be4
- 2.Qd6#
- 1...dxc2
- 2.Sc3#
- 1...dxe2
- 2.Se3#
- 1...a3
- 2.Bxb3#
- 1...Qc5
- Tries
- 1.Scxd4?
- threat
- 2.Sc3#
- 1...Qxd4+
- 2.Qxd4#
- 1...Qc5
- 2.Rxc5#
- 1...Be4
- 2.Qd6#
- 1...dxe2!
- threat
- 1.Sg3?
- threat
- 2.Qd6#
- 1...Qxe7
- 2.Qxd4#
- 1...Qc5
- 2.Rxc5#
- 1...Qb8
- 2.Rc5#
- 2.Qxd4#
- 1...Qc7
- 2.Qxd4#
- 1...Qd7
- 2.Rc5#
- 2.Qxd4#
- 1...e5
- 2.Qxf7#
- 1...hxg3+!
- threat
- 1.Sexd4?
- threat
- 2.Se3#
- 1...Qxd4+
- 2.Qxd4#
- 1...Be4
- 2.Qd6#
- 1...dxc2!
- threat
- 1.Bd6?
- threat
- 2.Qe5#
- 1...Qc5
- 2.Rxc5#
- 1...e5
- 2.Qxe5#
- 1...f6!
- threat
- 1.Bf6?
- threat
- 2.Qe5#
- 1...Qb8
- 2.Qxd4#
- 1...Qc7
- 2.Qxd4#
- 1...e5
- 2.Qxe5#
- 1...Qc5!
- threat
- 1.Rxd3?
- threat
- 2.Se3#
- 2.Sc3#
- 1...Qc5
- 2.Se3#
- 2.Rxc5#
- 1...Bxd3!
- threat
- 1.Qf3+?
- 1...Ke5
- 2.Bd6#
- 2.Bf6#
- 1...Be4!
- 1...Ke5
- 1.Scxd4?
- Keys
- 1.Kf3!
- threat
- 2.Qd6#
- 1...Be4+
- 2.Qxe4#
- 1...dxc2+
- 2.Sc3#
- 1...dxe2+
- 2.Se3#
- 1...Qxe7
- 2.Qxd4#
- 1...Qc5
- 2.Rxc5#
- 1...Qb8
- 2.Rc5#
- 2.Qxd4#
- 1...Qc7
- 2.Qxd4#
- 1...Qd7
- 2.Rc5#
- 2.Qxd4#
- 1...e5
- 2.Qxf7#
- threat
- 1.Kf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- Q(i);N_GUARD::R1(H),XQ(i)
- Q(i);N_GUARD::QAR1(F),XP(d)
- Q(i);N_GUARD,XB(I)::QAR1(F),XP(d)
- B(k);SBLOCK::QAR1(F)
- P(b);P_SPINP(d),XS(B)::S(D)
- P(b);P_SPINP(d),XS(D)::S(B)
- P(c);N_GUARD::B(A),XR(a)
- Tries
- Try
- S(B);P_SPINS(B),XP(d)
- Threat
- S(D)
- Vars
- Q(i);CHECK,OGATE,XS(B)::QAR1(F),XQ(i)
- Q(i);N_GUARD::R1(H),XQ(i)
- B(k);SBLOCK::QAR1(F)
- Refutation
- P(b);XS(D)
- Try
- S(D);
- Threat
- QAR1(F)
- Vars
- Q(i);N_GUARD,XB(I)::QAR1(F),XP(d)
- Q(i);N_GUARD::R1(H),XQ(i)
- Q(i);N_GUARD::QAR1(F),XP(d)
- P(h);OGATEB,SBLOCK::QAB(F),XP(j)
- Refutation
- P(e);CHECK,XS(D)
- Try
- S(D);P_SPINS(D),XP(d)
- Threat
- S(B)
- Vars
- Q(i);CHECK,OGATE,XS(D)::QAR1(F),XQ(i)
- B(k);SBLOCK::QAR1(F)
- Refutation
- P(b);XS(B)
- Try
- B(I);
- Threat
- QAR1(F)
- Vars
- Q(i);N_GUARD::R1(H),XQ(i)
- P(h);::QAR1(F),XP(h)
- Refutation
- P(j);
- Try
- B(I);
- Threat
- QAR1(F)
- Vars
- Q(i);N_GUARD::QAR1(F),XP(d)
- P(h);::QAR1(F),XP(h)
- Refutation
- Q(i);
- Try
- R(C);P_PINP(d),XP(b)
- Threat
- DUALS(2)
- Refutation
- B(k);N_SPINP(d),XR(C)
- Try
- Q(F);CHECK
- Refutation
- B(k);P_SPINB(k)
- Try
- Actual
- K(E);P-FLIGHT
- Threat
- QAR1(F)
- Vars
- B(k);CHECK,N_GUARD::QAB1(F),XB(k)
- P(b);CHECK,P_SPINP(d),XS(B)::S(D)
- P(b);CHECK,P_SPINP(d),XS(D)::S(B)
- Q(i);N_GUARD,XB(I)::QAR1(F),XP(d)
- Q(i);N_GUARD::R1(H),XQ(i)
- Q(i);N_GUARD::QAR1(F),XP(d)
- P(h);OGATEB,SBLOCK::QAB(F),XP(j)
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).