MESON Chess Problem Database
Problem Display
PID: 15141 (8/3p4/1N1P4/p2BPpp1/PbpB1nR1/1ppk1PPp/1nR2Q1P/K4N2 w - - 0 1)
Lender, Baruch
6th HM., Mat, 1980
#2
14 + 12
| 721 | Variantim | 1988 |
SOLUTION
- SOUND
- Sets
- 1...Ba3
- 2.Rxc3#
- 1...Bc5
- 2.Rxc3#
- 1...Bxd6
- 2.Rxc3#
- 1...Sd1
- 2.Bxc4#
- 1...Sxa4
- 2.Bxc4#
- 1...Se2
- 2.Qxe2#
- 1...Sg2
- 2.Qe2#
- 1...Sxd5
- 2.Qe2#
- 1...Sh5
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sg6
- 2.Qe2#
- 1...bxc2
- 2.Qe3#
- 1...fxg4
- 2.Be4#
- 1...Ba3
- Tries
- 1.Kb1?
- threat
- 2.Qe3#
- 1...Sxd5
- 2.Qe2#
- 1...Sd1
- 2.Bxc4#
- 1...Sg2
- 2.Qe2#
- 1...bxc2+!
- threat
- 1.Bxc3?
- threat
- 2.Qd2#
- 1...Se2
- 2.Qxe2#
- 1...Bxc3!
- threat
- 1.Be6?
- threat
- 2.Bxf5#
- 1...Sxe6
- 2.Qe2#
- 1...fxg4
- 2.Bf5#
- 1...dxe6!
- threat
- 1.Bf7?
- 1...Bxd6
- 2.Rxc3#
- 1...Sxa4
- 2.Bxc4#
- 1...bxc2
- 2.Qe3#
- 1...Se2
- 2.Qxe2#
- 1...Sd1
- 2.Bxc4#
- 1...Ba3
- 2.Rxc3#
- 1...Bc5
- 2.Rxc3#
- 1...Sg2
- 2.Qe2#
- 1...Sd5
- 2.Qe2#
- 1...Sh5
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sg6
- 2.Qe2#
- 1...fxg4!
- 1...Bxd6
- 1.Bg8?
- 1...Bxd6
- 2.Rxc3#
- 1...Sxa4
- 2.Bxc4#
- 1...bxc2
- 2.Qe3#
- 1...Se2
- 2.Qxe2#
- 1...Sd1
- 2.Bxc4#
- 1...Ba3
- 2.Rxc3#
- 1...Bc5
- 2.Rxc3#
- 1...Sg2
- 2.Qe2#
- 1...Sd5
- 2.Qe2#
- 1...Sh5
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sg6
- 2.Qe2#
- 1...fxg4!
- 1...Bxd6
- 1.Rxb2?
- threat
- 2.Bxc4#
- 2.Qe3#
- 1...Sxd5
- 2.Qe2#
- 1...Sg2
- 2.Bxc4#
- 2.Qe2#
- 1...cxb2+!
- threat
- 1.Rxf4?
- threat
- 2.Qe2#
- 1...bxc2
- 2.Qe3#
- 1...gxf4!
- threat
- 1.Qe2+?
- 1...Kxd4
- 2.Qe3#
- 1...Sxe2!
- 1...Kxd4
- 1.gxf4?
- 1...Bxd6
- 2.Rxc3#
- 1...Sxa4
- 2.Bxc4#
- 1...bxc2
- 2.Qe3#
- 1...fxg4
- 2.Be4#
- 1...Sd1
- 2.Bxc4#
- 1...Ba3
- 2.Rxc3#
- 1...Bc5
- 2.Rxc3#
- 1...gxf4!
- 1...Bxd6
- 1.e6?
- 1...Bxd6
- 2.Rxc3#
- 1...Sxa4
- 2.Bxc4#
- 1...Sxd5
- 2.Qe2#
- 1...Sxe6
- 2.Qe2#
- 1...bxc2
- 2.Qe3#
- 1...fxg4
- 2.Be4#
- 1...Se2
- 2.Qxe2#
- 1...Sd1
- 2.Bxc4#
- 1...Ba3
- 2.Rxc3#
- 1...Bc5
- 2.Rxc3#
- 1...Sg2
- 2.Qe2#
- 1...Sh5
- 2.Qe2#
- 1...Sg6
- 2.Qe2#
- 1...dxe6!
- 1...Bxd6
- 1.Kb1?
- Keys
- 1.Qe1!
- 1...Kxc2
- 2.Qb1#
- 1...Kxd4
- 2.Qe3#
- 1...Bxd6
- 2.Qxc3#
- 1...Sxa4
- 2.Qd1#
- 1...Sxd5
- 2.Qe2#
- 1...bxc2
- 2.Qe3#
- 1...fxg4
- 2.Qe4#
- 1...Sd1
- 2.Qxd1#
- 1...Ba3
- 2.Qxc3#
- 1...Bc5
- 2.Qxc3#
- 1...Se2
- 2.Qxe2#
- 1...Sg2
- 2.Qe2#
- 1...Sh5
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sg6
- 2.Qe2#
- 1...Kxc2
- 1.Qe1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(f);N_GUARD::R1(C),XP(c)
- B(f);N_GUARD,XP(N)::R1(C),XP(c)
- S(a);N_GUARD::B(K),XP(g)
- S(a);N_GUARD,XP(H)::B(K),XP(g)
- S(h);N_GUARD::QAB1(D),XS(h)
- S(h);N_GUARD::QAB1(D)
- S(h);N_GUARD,XB(K)::QAB1(D)
- P(b);SBLOCK,XR(C)::QAR1(D)
- P(j);N_GUARD,XR(J)::B(K)
- Tries
- Try
- K(A);P-FLIGHT
- Threat
- QAR1(D)
- Vars
- S(h);N_GUARD,XB(K)::QAB1(D)
- S(a);N_GUARD::B(K),XP(g)
- S(h);N_GUARD::QAB1(D)
- Refutation
- P(b);CHECK,XR(C)
- Try
- B(I);XP(c)
- Threat
- QAR1(D)
- Vars
- S(h);N_GUARD::QAB1(D),XS(h)
- Refutation
- B(f);XB(I)
- Try
- B(K);
- Threat
- B(K),XP(j)
- Vars
- S(h);N_GUARD,XB(K)::QAB1(D)
- P(j);XR(J)::B(K)
- Refutation
- P(l);XB(K)
- Try
- B(K);
- Vars
- B(f);N_GUARD,XP(N)::R1(C),XP(c)
- S(a);N_GUARD,XP(H)::B(K),XP(g)
- P(b);SBLOCK,XR(C)::QAR1(D)
- S(h);N_GUARD::QAB1(D),XS(h)
- S(a);N_GUARD::B(K),XP(g)
- B(f);N_GUARD::R1(C),XP(c)
- S(h);N_GUARD::QAB1(D)
- Refutation
- P(j);XR(J)
- Try
- B(K);
- Vars
- B(f);N_GUARD,XP(N)::R1(C),XP(c)
- S(a);N_GUARD,XP(H)::B(K),XP(g)
- P(b);SBLOCK,XR(C)::QAR1(D)
- S(h);N_GUARD::QAB1(D),XS(h)
- S(a);N_GUARD::B(K),XP(g)
- B(f);N_GUARD::R1(C),XP(c)
- S(h);N_GUARD::QAB1(D)
- Refutation
- P(j);XR(J)
- Try
- R(C);XS(a)
- Threat
- DUALS(2)
- Vars
- S(h);N_GUARD,XB(K)::QAB1(D)
- Refutation
- P(c);CHECK,XR(C)
- Try
- R(J);XS(h)
- Threat
- QAB1(D)
- Vars
- P(b);SBLOCK,XR(C)::QAR1(D)
- Refutation
- P(k);XR(J)
- Try
- Q(D);CHECK
- Vars
- K(d);P-FLIGHT,P_SPINS(h),XB(I)::QAB1(D)
- Refutation
- S(h);XQ(D)
- Try
- P(G);XS(h)
- Vars
- B(f);N_GUARD,XP(N)::R1(C),XP(c)
- S(a);N_GUARD,XP(H)::B(K),XP(g)
- P(b);SBLOCK,XR(C)::QAR1(D)
- P(j);N_GUARD,XR(J)::B(K)
- S(a);N_GUARD::B(K),XP(g)
- B(f);N_GUARD::R1(C),XP(c)
- Refutation
- P(k);XP(G)
- Try
- P(L);
- Vars
- B(f);N_GUARD,XP(N)::R1(C),XP(c)
- S(a);N_GUARD,XP(H)::B(K),XP(g)
- S(h);N_GUARD,XB(K)::QAB1(D)
- S(h);N_GUARD,XP(L)::QAB1(D)
- P(b);SBLOCK,XR(C)::QAR1(D)
- P(j);N_GUARD,XR(J)::B(K)
- S(h);N_GUARD::QAB1(D),XS(h)
- S(a);N_GUARD::B(K),XP(g)
- B(f);N_GUARD::R1(C),XP(c)
- S(h);N_GUARD::QAB1(D)
- Refutation
- P(l);XP(L)
- Try
- Actual
- Q(D);
- Vars
- K(d);OGATEB,S_FLIGHT,XR(C)::QAB1(D)
- K(d);P-FLIGHT,P_SPINS(h),XB(I)::QAB1(D)
- B(f);N_GUARD,XP(N)::QAR1(D),XP(c)
- S(a);N_GUARD,XP(H)::QAR2(D)
- S(h);N_GUARD,XB(K)::QAB1(D)
- P(b);SBLOCK,XR(C)::QAR1(D)
- P(j);N_GUARD,XR(J)::QAB1(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- B(f);N_GUARD::QAR1(D),XP(c)
- S(h);N_GUARD::QAB1(D),XS(h)
- S(h);N_GUARD::QAB1(D)
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).