MESON Chess Problem Database
Problem Display
PID: 211405 (4b2b/5n1B/r5Rp/ppBP3r/4N2R/1Qpk1p2/2pp1P2/4nK2 w - - 0 1)
Rice, John Michael
The Problemist, 1986
#2
9 + 14
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Qxc3#
- 1...Rc6
- 2.Qxb5#
- 1...Rf6
- 2.Qxc3#
- 1...Se5
- 2.Qxc3#
- 1...Re5
- Tries
- 1.Rc6?
- threat
- 2.Sg5#
- 2.Qxb5#
- 1...Rxh4
- 2.Qxb5#
- 1...Rxd5
- 2.Qxb5#
- 1...Rxc6
- 2.Qxb5#
- 1...Bxc6
- 2.Sg5#
- 1...c1Q
- 2.Sg5#
- 1...c1S
- 2.Sg5#
- 1...c1B
- 2.Sg5#
- 1...c1R
- 2.Sg5#
- 1...d1Q
- 2.Qxb5#
- 1...d1S
- 2.Qxb5#
- 1...d1B
- 2.Qxb5#
- 1...d1R
- 2.Qxb5#
- 1...Re5
- 2.Qxc3#
- 2.Qxb5#
- 1...Rf5
- 2.Qxb5#
- 1...Rg5
- 2.Sxg5#
- 2.Qxb5#
- 1...Rb6
- 2.Sg5#
- 1...Bd7
- 2.Qxb5#
- 1...Se5
- 2.Qxc3#
- 1...Sg5
- 2.Qxb5#
- 1...Sd8
- 2.Qxb5#
- 1...b4
- 2.Sg5#
- 1...Sd6!
- threat
- 1.Rf6?
- threat
- 2.Sg5#
- 2.Qxc3#
- 1...Rxh4
- 2.Qxc3#
- 1...Rxd5
- 2.Qxd5#
- 2.Qxc3#
- 1...Rxf6
- 2.Qxc3#
- 1...Bxf6
- 2.Sg5#
- 1...c1Q
- 2.Sg5#
- 1...c1R
- 2.Sg5#
- 1...d1Q
- 2.Qxc3#
- 1...d1B
- 2.Qxc3#
- 1...d1R
- 2.Qxc3#
- 1...Re5
- 2.Qxc3#
- 1...Rf5
- 2.Qxc3#
- 1...Rg5
- 2.Sxg5#
- 2.Qxc3#
- 1...Re6
- 2.Qxc3#
- 1...Bd7
- 2.Qxc3#
- 1...Se5
- 2.Qxc3#
- 1...Sg5
- 2.Qxc3#
- 1...Sd6
- 2.Qxc3#
- 1...Sd8
- 2.Qxc3#
- 1...b4
- 2.Sg5#
- 1...d1S!
- threat
- 1.Rc6?
- Keys
- 1.Sf6!
- threat
- 2.Rd4#
- 2.Rg5#
- 1...Rxh4
- 2.Rg4#
- 1...Rxd5
- 2.Qxd5#
- 1...Rxf6
- 2.Rd4#
- 1...Bxf6
- 2.Rg5#
- 1...d1Q
- 2.Rd4#
- 1...d1S
- 2.Rd4#
- 1...d1B
- 2.Rd4#
- 1...d1R
- 2.Rd4#
- 1...Re5
- 2.Rd4#
- 1...Rf5
- 2.Rd4#
- 1...Rg5
- 2.Rd4#
- 2.Rxg5#
- 1...Re6
- 2.Rd4#
- 1...Bd7
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...Sg5
- 2.Rd4#
- 1...Sd6
- 2.Rd4#
- 1...Sd8
- 2.Rd4#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 13
- REMOVED MATES = 1
- Sets
- R(i);S_CUTB(n)::QAR1(C),XP(d)
- R(j);S_CUTB(m)::QAB(C),XP(h)
- R(j);S_CUTB(n)::QAR1(C),XP(d)
- S(l);S_CUTB(n)::QAR1(C),XP(d)
- Tries
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(i);XR(E)::QAB(C),XP(h)
- R(i);XP(G)::QAB(C),XP(h)
- R(j);XR(H)::QAB(C),XP(h)
- B(m);XR(H)::B(I)+S(D)
- P(b);::B(I)+S(D)
- P(c);::QAB(C),XP(h)
- R(i);::QAB(C),XP(h)
- R(j);::B(I)+S(D)
- B(m);::QAB(C),XP(h)
- S(l);S_CUTB(n)::QAR1(C),XP(d)
- S(l);::QAB(C),XP(h)
- P(h);::B(I)+S(D)
- Refutation
- S(l);
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(i);XR(E)::QAR1(C),XP(d)
- R(j);XR(H)::QAR1(C),XP(d)
- B(n);XR(H)::B(I)+S(D)
- P(b);::B(I)+S(D)
- P(c);::QAR1(C),XP(d)
- R(i);::QAR1(C),XP(d)
- R(j);::QAR1(C),XP(d)
- B(m);::QAR1(C),XP(d)
- S(l);::QAR1(C),XP(d)
- P(h);::B(I)+S(D)
- Refutation
- P(c);
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- R(i);N_GUARD,XR(E)::B(I)+R(H)
- R(i);OGATE,XP(G)::QAR2(C),XR(i)
- R(j);XS(D)::R1(E)
- B(n);XS(D)::B(I)+R(H)
- P(c);::R1(E)
- R(i);::R1(E)
- R(j);::R1(E)
- B(m);::R1(E)
- S(l);::R1(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).