MESON Chess Problem Database
Problem Display
PID: 229293 (8/1p6/bK2Q1n1/Rp2p3/4kp2/1R5p/1BPP1Prn/7B w - - 0 1)
Lender, Baruch
US Problem Bulletin, 1987
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Sf1
- 2.f3#
- 1...Sf3
- 2.d3#
- 1...Sg4
- 2.f3#
- 1...Sh4
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...f3
- 2.Rb4#
- 1...b4
- 2.Qxg6#
- 1...Sf1
- Tries
- 1.Kc5?
- threat
- 2.Qxg6#
- 1...f3
- 2.Rb4#
- 1...Sf3
- 2.d3#
- 1...Sh4
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...b6+!
- threat
- 1.Ka7?
- 1...f3
- 2.Rb4#
- 1...Sf1
- 2.f3#
- 1...Sf3
- 2.d3#
- 1...Sg4
- 2.f3#
- 1...Sh4
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...b4
- 2.Qxg6#
- 1...b6!
- 1...f3
- 1.Kc7?
- 1...f3
- 2.Rb4#
- 1...Sf1
- 2.f3#
- 1...Sf3
- 2.d3#
- 1...Sg4
- 2.f3#
- 1...Sh4
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...b4
- 2.Qxg6#
- 1...b6!
- 1...f3
- 1.Bxg2+?
- 1...Sf3
- 2.Bxf3#
- 2.Rb4#
- 2.d3#
- 1...f3
- 2.Rb4#
- 1...hxg2!
- 1...Sf3
- 1.Rba3?
- 1...Sf1
- 2.f3#
- 1...Sf3
- 2.d3#
- 1...Sg4
- 2.f3#
- 1...Sh4
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...b4
- 2.Qxg6#
- 1...f3!
- 1...Sf1
- 1.Rd3?
- threat
- 2.Qxg6#
- 1...f3
- 2.Rd4#
- 1...Sh4
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...Sf3!
- threat
- 1.Rxh3?
- threat
- 2.d3#
- 1...b4
- 2.Qxg6#
- 1...f3!
- threat
- 1.Ra1?
- threat
- 2.Re1#
- 1...f3
- 2.Rb4#
- 1...Sf1
- 2.f3#
- 1...Sf3
- 2.d3#
- 1...Sg4
- 2.f3#
- 1...b4!
- threat
- 1.Ra2?
- 1...f3
- 2.Rb4#
- 1...Sf1
- 2.f3#
- 1...Sf3
- 2.d3#
- 1...Sg4
- 2.f3#
- 1...Sh4
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...b4!
- 1...f3
- 1.Raa3?
- threat
- 2.Rb4#
- 1...Sf3
- 2.d3#
- 1...b4!
- threat
- 1.Raxb5?
- threat
- 2.Qxg6#
- 1...f3
- 2.R3b4#
- 1...Sf3
- 2.d3#
- 1...Sh4
- 2.Rxe5#
- 2.Qxe5#
- 1...Se7
- 2.Rxe5#
- 2.Qxe5#
- 1...Sf8
- 2.Rxe5#
- 2.Qxe5#
- 1...Sh8
- 2.Rxe5#
- 2.Qxe5#
- 1...Bxb5!
- threat
- 1.Qd7?
- threat
- 2.Qd3#
- 1...f3
- 2.Rb4#
- 1...b4!
- threat
- 1.c4?
- threat
- 2.Qxg6#
- 1...Sf3
- 2.d3#
- 1...Sh4
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...f3!
- threat
- 1.Kc5?
- Keys
- 1.Ba1!
- 1...f3
- 2.Rb4#
- 1...Sf1
- 2.f3#
- 1...Sf3
- 2.d3#
- 1...Sg4
- 2.f3#
- 1...Sh4
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...b4
- 2.Qxg6#
- 1...f3
- 1.Ba1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::P(E)
- S(b);N_SPINR(a),SBLOCK::P(D)
- S(i);N_GUARD::QAR1(I),XP(g)
- P(e);N_SPINR(a),SBLOCK::R(F)
- P(f);::QAB(I),XS(i)
- Tries
- Try
- K(H);S_FLIGHT
- Threat
- QAB(I),XS(i)
- Vars
- P(e);N_SPINR(a),SBLOCK::R(F)
- S(b);N_SPINR(a),SBLOCK::P(D)
- S(i);N_GUARD::QAR1(I),XP(g)
- Refutation
- P(j);CHECK
- Try
- K(H);S_FLIGHT
- Vars
- P(e);N_SPINR(a),SBLOCK::R(F)
- S(b);N_GUARD::P(E)
- S(b);N_SPINR(a),SBLOCK::P(D)
- S(i);N_GUARD::QAR1(I),XP(g)
- P(f);::QAB(I),XS(i)
- Refutation
- P(j);
- Try
- K(H);S_FLIGHT
- Vars
- P(e);N_SPINR(a),SBLOCK::R(F)
- S(b);N_GUARD::P(E)
- S(b);N_SPINR(a),SBLOCK::P(D)
- S(i);N_GUARD::QAR1(I),XP(g)
- P(f);::QAB(I),XS(i)
- Refutation
- P(j);
- Try
- B(A);CHECK,XR(a)
- Vars
- P(e);N_SPINP(g),P_SPINP(e)::R(F)
- Refutation
- P(c);XB(A)
- Try
- R(F);
- Vars
- S(b);N_GUARD::P(E)
- S(b);N_SPINR(a),SBLOCK::P(D)
- S(i);N_GUARD::QAR1(I),XP(g)
- P(f);::QAB(I),XS(i)
- Refutation
- P(e);N_SPINR(a)
- Try
- R(F);
- Threat
- QAB(I),XS(i)
- Vars
- P(e);N_SPINR(a),SBLOCK::R1(F)
- S(i);N_GUARD::QAR1(I),XP(g)
- Refutation
- S(b);N_SPINR(a)
- Try
- R(F);XP(c)
- Threat
- P(D)
- Vars
- P(f);::QAB(I),XS(i)
- Refutation
- P(e);N_SPINR(a)
- Try
- R(G);
- Threat
- R(G)
- Vars
- P(e);N_SPINR(a),SBLOCK::R(F)
- S(b);N_GUARD::P(E)
- S(b);N_SPINR(a),SBLOCK::P(D)
- Refutation
- P(f);
- Try
- R(G);
- Vars
- P(e);N_SPINR(a),SBLOCK::R(F)
- S(b);N_GUARD::P(E)
- S(b);N_SPINR(a),SBLOCK::P(D)
- S(i);N_GUARD::QAR1(I),XP(g)
- Refutation
- P(f);
- Try
- R(G);
- Threat
- R(F)
- Vars
- S(b);N_SPINR(a),SBLOCK::P(D)
- Refutation
- P(f);
- Try
- R(G);XP(f)
- Threat
- QAB(I),XS(i)
- Vars
- P(e);N_SPINR(a),SBLOCK::R(F)
- S(b);N_SPINR(a),SBLOCK::P(D)
- Refutation
- B(h);XR(G)
- Try
- Q(I);N_PINP(g)
- Threat
- QAB1(I)
- Vars
- P(e);N_SPINR(a),SBLOCK::R(F)
- Refutation
- P(f);
- Try
- P(C);
- Threat
- QAB(I),XS(i)
- Vars
- S(b);N_SPINR(a),SBLOCK::P(D)
- S(i);N_GUARD::QAR1(I),XP(g)
- Refutation
- P(e);N_SPINR(a)
- Try
- Actual
- B(B);
- Vars
- P(e);N_SPINR(a),SBLOCK::R(F)
- S(b);N_GUARD::P(E)
- S(b);N_SPINR(a),SBLOCK::P(D)
- S(i);N_GUARD::QAR1(I),XP(g)
- P(f);::QAB(I),XS(i)
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).