MESON Chess Problem Database
Problem Display
PID: 176371 (2r1R2b/3P1KB1/Bn2N3/8/1N3p2/1b2kP2/Rn2Pr2/4Q3 w - - 0 1)
Haring, Jacobus
Comm., Schach-Echo, 1972
#2
11 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxe2
- 2.Qxe2#
- 1...Rc1
- 2.Qxc1#
- 1...Rc4
- 2.Sd4#
- 1...Ra8
- 2.Qc1#
- 1...Rb8
- 2.Qc1#
- 1...Rd8
- 2.Qc1#
- 1...Rxe8
- 2.Qc1#
- 1...Bd1
- 2.Sd8#
- 1...Bc2
- 2.Qc1#
- 1...Ba4
- 2.Sd8#
- 1...Bc4
- 2.Sc2#
- 1...Bxe6+
- 2.Rxe6#
- 1...Sd1
- 2.Qd2#
- 1...Sd3
- 2.Qd2#
- 1...S2a4
- 2.Qd2#
- 1...S2c4
- 2.Qc3#
- 1...S6c4
- 2.Sd5#
- 1...Rxe2
- Tries
- 1.Sc2+?
- 1...Bxc2
- 2.Qc1#
- 1...Rxc2!
- 1...Bxc2
- 1.Bxh8?
- threat
- 2.Bd4#
- 1...Bxe6+
- 2.Rxe6#
- 1...Rxe2
- 2.Qxe2#
- 1...Rc4
- 2.Sd4#
- 1...Rxf3!
- threat
- 1.Qc3+?
- 1...Sd3
- 2.Qd2#
- 2.Qd4#
- 2.Qxd3#
- 1...Rxc3!
- 1...Sd3
- 1.dxc8Q?
- threat
- 2.Qec1#
- 2.Qcc1#
- 2.Qc5#
- 1...Bxe6+
- 2.Rxe6#
- 2.Qxe6#
- 1...Rxe2
- 2.Qxe2#
- 1...Bxg7
- 2.Qec1#
- 2.Qcc1#
- 1...Sxc8
- 2.Qc1#
- 1...Rf1
- 2.Qcc1#
- 2.Qc5#
- 1...Rg2
- 2.Qcc1#
- 2.Qc5#
- 1...Rh2
- 2.Qcc1#
- 2.Qc5#
- 1...Bd1
- 2.Sd4#
- 2.Sc5#
- 2.Sg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Qc1#
- 2.Qc5#
- 1...Bc2
- 2.Sxc2#
- 2.Qc1#
- 2.Qc5#
- 1...Bc4
- 2.Sc2#
- 2.Qc5#
- 1...Sd1
- 2.Qd2#
- 2.Qc1#
- 2.Qc5#
- 1...Sd3
- 2.Qd2#
- 1...S2a4
- 2.Qd2#
- 2.Qec1#
- 2.Qcc1#
- 1...S2c4
- 2.Qc3#
- 2.Qc5#
- 1...S6a4
- 2.Qec1#
- 2.Qcc1#
- 1...S6c4
- 2.Sd5#
- 2.Qc5#
- 1...Sd7
- 2.Qec1#
- 2.Qcc1#
- 1...Rxf3!
- threat
- 1.Sc2+?
- Keys
- 1.Bc4!
- threat
- 2.Sd8#
- 2.Qc1#
- 1...Rxe2
- 2.Qxe2#
- 1...Rxf3
- 2.Sd8#
- 1...Rxc4
- 2.Sd4#
- 1...Rxe8
- 2.Qc1#
- 1...Bxc4
- 2.Sc2#
- 1...Bxg7
- 2.Qc1#
- 1...S2xc4
- 2.Qc3#
- 1...S6xc4
- 2.Sd5#
- 1...Sxd7
- 2.Sd5#
- 2.Qc1#
- 1...Rf1
- 2.Sd8#
- 1...Rg2
- 2.Sd8#
- 1...Rh2
- 2.Sd8#
- 1...Rc5
- 2.Sxc5#
- 2.Qc1#
- 1...Rc6
- 2.Qc1#
- 1...Rd8
- 2.Sxd8#
- 2.Qc1#
- 1...Bd1
- 2.Sd8#
- 1...Bc2
- 2.Sxc2#
- 2.Qc1#
- 1...Sd1
- 2.Sd8#
- 2.Qd2#
- 1...Sd3
- 2.Qd2#
- 1...Sd5
- 2.Sxd5#
- 2.Qc1#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 9
- Sets
- R(b);OGATE,P_SPINR(b),XP(C)::QAR1(A),XR(b)
- R(g);N_GUARD::QAB(A),XR(g)
- R(g);N_PINS(G)::R(K)+S(G)
- R(g);N_GUARD::QAB(A)
- R(g);N_GUARD,XR(K)::QAB(A)
- B(c);N_PINS(G)::R(K)+S(G)
- B(c);N_PINS(G),S_CUTR(g)::QAB(A)
- B(c);N_GUARD,S_CUTR(g)::S(E)
- B(c);CHECK,OGATE,P_SPINB(c),XS(G)::R(K),XB(c)
- S(a);::QAB1(A)
- S(a);N_GUARD,N_PINS(G),S_CUTR(g)::QAR2(A)
- S(f);N_GUARD,N_PINS(G),S_CUTB(c)::S(E)
- Tries
- Try
- S(E);CHECK
- Vars
- B(c);N_PINS(G),XS(E)::QAB(A)
- Refutation
- R(g);XS(E)
- Try
- B(J);XB(h)
- Threat
- B(J)
- Vars
- B(c);CHECK,OGATE,P_SPINB(c),XS(G)::R(K),XB(c)
- R(b);OGATE,P_SPINR(b),XP(C)::QAR1(A),XR(b)
- R(g);N_PINS(G)::R(K)+S(G)
- Refutation
- R(b);XP(D)
- Try
- Q(A);CHECK
- Refutation
- R(g);XQ(A)
- Try
- P(H);XR(g)
- Threat
- DUALS(3)
- Vars
- R(b);OGATE,P_SPINR(b),XP(C)::QAR1(A),XR(b)
- S(f);XQ(H)::QAB(A)
- S(a);::QAB1(A)
- Refutation
- R(b);XP(D)
- Try
- Actual
- B(F);N_SPINS(G)
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,P_SPINR(b),XP(C)::QAR1(A),XR(b)
- R(b);XP(D)::R(K)+S(G)
- R(g);N_GUARD,XB(F)::R(K)+S(G)
- R(g);XR(K)::QAB(A)
- B(c);N_GUARD,P_PINS(G),XB(F)::S(E)
- B(h);XB(J)::QAB(A)
- S(a);N_GUARD,XB(F)::QAR2(A)
- S(f);N_GUARD,XB(F)::S(E)
- R(b);::R(K)+S(G)
- R(g);::QAB(A)
- B(c);::R(K)+S(G)
- S(a);::QAB1(A)
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).