MESON Chess Problem Database
Problem Display
PID: 29885 (8/8/1K2p3/4Q3/1NNR2b1/BR6/3p2B1/r2kb3 w - - 0 1)
Shire, David J
The Problemist, 1987
#2
8 + 6
| 3256 | David Shire Selected Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Rxa3
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Rb1
- Tries
- 1.Ka5?
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bf2
- 2.Rxd2#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Rxa3+!
- 1...Rb1
- 1.Kb5?
- 1...Rxa3
- 2.Rb1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bf2
- 2.Rxd2#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Be2!
- 1...Rxa3
- 1.Kc6?
- 1...Bf3+
- 2.Bxf3#
- 1...Rxa3
- 2.Rb1#
- 1...Be2
- 2.Se3#
- 1...Rb1
- 2.Rxb1#
- 1...Ra2
- 2.Rb1#
- 1...Bf2
- 2.Rxd2#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Rc1!
- 1...Bf3+
- 1.Kc7?
- 1...Rxa3
- 2.Rb1#
- 1...Be2
- 2.Se3#
- 1...Rb1
- 2.Rxb1#
- 1...Ra2
- 2.Rb1#
- 1...Bf2
- 2.Rxd2#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Rc1!
- 1...Rxa3
- 1.Bf1?
- threat
- 2.Se3#
- 1...Rxa3
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Bf2!
- threat
- 1.Bh1?
- 1...Rxa3
- 2.Rb1#
- 1...Rc1
- 2.Sb2#
- 1...Rb1
- 2.Rxb1#
- 1...Ra2
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Bf2!
- 1...Rxa3
- 1.Bc6?
- 1...Rxa3
- 2.Rb1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Bf2!
- 1...Rxa3
- 1.Bb7?
- 1...Rxa3
- 2.Rb1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Bf2!
- 1...Rxa3
- 1.Ba8?
- 1...Rxa3
- 2.Rb1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Bf2!
- 1...Rxa3
- 1.Rc3?
- threat
- 2.Sb2#
- 1...Ra2
- 2.Rc1#
- 1...Rb1!
- threat
- 1.Re3?
- threat
- 2.Rxe1#
- 1...Bf2
- 2.Rxd2#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2!
- threat
- 1.Rdd3?
- 1...Rxa3
- 2.Rb1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 2.Qxa1#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Bf2+!
- 1...Rxa3
- 1.Re4?
- threat
- 2.Qxa1#
- 1...Rxa3
- 2.Rb1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bf2+!
- threat
- 1.Rxg4?
- threat
- 2.Bf3#
- 1...Rxa3
- 2.Rb1#
- 1...Bf2+!
- threat
- 1.Rd6?
- 1...Rxa3
- 2.Rb1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 2.Qxa1#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Bf2+!
- 1...Rxa3
- 1.Rd7?
- 1...Rxa3
- 2.Rb1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 2.Qxa1#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Bf2+!
- 1...Rxa3
- 1.Rd8?
- 1...Rxa3
- 2.Rb1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Be2
- 2.Se3#
- 2.Qxa1#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Bf2+!
- 1...Rxa3
- 1.Qe2+?
- 1...Bxe2
- 2.Se3#
- 1...Kxe2!
- 1...Bxe2
- 1.Ka5?
- Keys
- 1.Kb7!
- 1...Bf3+
- 2.Bxf3#
- 1...Rxa3
- 2.Rb1#
- 1...Be2
- 2.Se3#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Sb2#
- 1...Ra2
- 2.Rb1#
- 1...Bf2
- 2.Rxd2#
- 1...Bg3
- 2.Rxd2#
- 1...Bh4
- 2.Rxd2#
- 1...Bh3
- 2.Bf3#
- 1...Bf5
- 2.Bf3#
- 1...Bh5
- 2.Qxh5#
- 1...Bf3+
- 1.Kb7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- R(a);N_GUARD,XB(B)::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);SBLOCK::S(E)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Tries
- Try
- K(H);P_SPINB(B),S_FLIGHT
- Vars
- R(a);N_GUARD,N_PINB(B)::R(C),XR(a)
- R(a);N_PINB(B),SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);SBLOCK::S(E)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- R(a);CHECK,XB(B)
- Try
- K(H);P-FLIGHT
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- B(e);P_PINS(E)
- Try
- K(H);P-FLIGHT
- Vars
- B(e);CHECK,N_GUARD::B(A),XB(e)
- R(a);N_GUARD,XB(B)::R(C)
- B(e);SBLOCK::S(E)
- R(a);N_GUARD::R(C),XR(a)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- R(a);P_PINS(E)
- Try
- K(H);S_FLIGHT
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- B(e);SBLOCK::S(E)
- R(a);N_GUARD::R(C),XR(a)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(c);N_GUARD,P_PINQ(G)::R1(F),XP(d)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- R(a);P_PINS(E)
- Try
- B(A);
- Threat
- S(E)
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- Refutation
- B(c);P_PINR(F)
- Try
- B(A);
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C),XR(a)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);SBLOCK::S(E)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- B(c);P_PINR(F)
- Try
- B(A);
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);SBLOCK::S(E)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- B(c);P_PINR(F)
- Try
- B(A);
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);SBLOCK::S(E)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- B(c);P_PINR(F)
- Try
- B(A);
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);SBLOCK::S(E)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- B(c);P_PINR(F)
- Try
- R(C);
- Threat
- S(E)
- Vars
- R(a);N_GUARD::R1(C)
- Refutation
- R(a);P_PINS(D)
- Try
- R(C);
- Threat
- R1(C),XB(c)
- Vars
- B(c);N_GUARD::R1(F),XP(d)
- Refutation
- B(e);
- Try
- R(F);
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- B(c);CHECK
- Try
- R(F);N_PINP(d)
- Threat
- QAR(G),XR(a)
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- Refutation
- B(c);CHECK
- Try
- R(F);N_PINP(d),XB(e)
- Threat
- B(A)
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- Refutation
- B(c);CHECK
- Try
- R(F);
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- B(c);CHECK
- Try
- R(F);
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- B(c);CHECK
- Try
- R(F);
- Vars
- R(a);N_GUARD,XB(B)::R(C)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);N_GUARD::B(A),XB(e)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(e)
- Refutation
- B(c);CHECK
- Try
- Q(G);CHECK
- Vars
- B(e);SBLOCK,XQ(G)::S(E)
- Refutation
- K(b);N_SPINP(d),S_FLIGHT,XQ(G)
- Try
- Actual
- K(H);P-FLIGHT
- Vars
- B(e);CHECK,N_GUARD::B(A),XB(e)
- R(a);N_GUARD,XB(B)::R(C)
- B(e);SBLOCK::S(E)
- R(a);N_GUARD::R(C),XR(a)
- R(a);SBLOCK::S(E)
- R(a);N_GUARD::R(C)
- B(c);N_GUARD::R1(F),XP(d)
- B(e);N_GUARD::B(A)
- B(e);OGATEB::QAB(G),XB(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).