MESON Chess Problem Database
Problem Display
PID: 91861 (8/1p2p3/br2Bp2/2B2K2/pr1pR1P1/P1kp3p/1p1N3R/1Q2N3 w - - 0 1)
Deichelbohrer, Horst
Schach-Echo, 1978
#2
10 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Bxd4#
- 1...Rc4
- 2.Qxd3#
- 1...R4b5
- 2.Qxd3#
- 1...R6b5
- 2.Qxd3#
- 1...Rc6
- 2.Bxb4#
- 1...Rd6
- 2.Bxb4#
- 1...Rxe6
- 2.Bxb4#
- 1...Bc4
- 2.Bxd4#
- 1...Bb5
- 2.Bxb4#
- 1...Rb3
- Tries
- 1.Kf4?
- 1...Rxe6
- 2.Bxb4#
- 1...Rb3
- 2.Bxd4#
- 1...Rc4
- 2.Qxd3#
- 1...R4b5
- 2.Bxd4#
- 2.Qxd3#
- 1...R6b5
- 2.Qxd3#
- 1...Rc6
- 2.Bxb4#
- 1...Rd6
- 2.Bxb4#
- 1...Bc4
- 2.Bxd4#
- 1...Bb5
- 2.Bxb4#
- 1...f5!
- 1...Rxe6
- 1.Kg6?
- 1...Rxe6
- 2.Bxb4#
- 1...Rb3
- 2.Bxd4#
- 1...Rc4
- 2.Qxd3#
- 1...R4b5
- 2.Bxd4#
- 2.Qxd3#
- 1...R6b5
- 2.Qxd3#
- 1...Rc6
- 2.Bxb4#
- 1...Rd6
- 2.Bxb4#
- 1...Bc4
- 2.Bxd4#
- 1...Bb5
- 2.Bxb4#
- 1...f5!
- 1...Rxe6
- 1.Sb3?
- threat
- 2.Qxb2#
- 1...Rxb3
- 2.Bxd4#
- 1...d2
- 2.Qc2#
- 1...Rxe6!
- threat
- 1.Sc4?
- threat
- 2.Qxd3#
- 1...Kb3
- 2.Qxb2#
- 1...d2
- 2.Qc2#
- 2.Qd3#
- 1...Bxc4!
- threat
- 1.Bc4?
- threat
- 2.Bxd4#
- 2.Qxd3#
- 1...Rxc4
- 2.Qxd3#
- 1...Bxc4
- 2.Bxd4#
- 1...R4b5
- 2.Qxd3#
- 1...R6b5
- 2.Qxd3#
- 1...Rd6
- 2.Bxb4#
- 2.Qxd3#
- 1...e5
- 2.Qxd3#
- 1...e6+!
- threat
- 1.Rhe2?
- 1...Rxe6
- 2.Bxb4#
- 1...dxe2
- 2.Qc2#
- 1...Rb3
- 2.Bxd4#
- 1...Rc4
- 2.Qxd3#
- 1...R4b5
- 2.Qxd3#
- 1...R6b5
- 2.Qxd3#
- 1...Rc6
- 2.Bxb4#
- 1...Rd6
- 2.Bxb4#
- 1...Bc4
- 2.Bxd4#
- 1...Bb5
- 2.Bxb4#
- 1...h2!
- 1...Rxe6
- 1.Rf2?
- 1...Rxe6
- 2.Bxb4#
- 1...Rb3
- 2.Bxd4#
- 1...Rc4
- 2.Qxd3#
- 1...R4b5
- 2.Qxd3#
- 1...R6b5
- 2.Qxd3#
- 1...Rc6
- 2.Bxb4#
- 1...Rd6
- 2.Bxb4#
- 1...Bc4
- 2.Bxd4#
- 1...Bb5
- 2.Bxb4#
- 1...h2!
- 1...Rxe6
- 1.Ree2?
- threat
- 2.Se4#
- 1...Rxe6
- 2.Bxb4#
- 1...Rc4
- 2.Qxd3#
- 1...Bc4!
- threat
- 1.Re3?
- threat
- 2.Se4#
- 2.Qc2#
- 1...Rxe6
- 2.Bxb4#
- 2.Qc2#
- 1...Rc4
- 2.Rxd3#
- 2.Qc2#
- 2.Qxd3#
- 1...Bc4
- 2.Qc2#
- 1...dxe3!
- threat
- 1.Re5?
- threat
- 2.Se4#
- 1...Rxe6
- 2.Bxb4#
- 1...Rc4
- 2.Qxd3#
- 1...Bc4!
- threat
- 1.Qxb2+?
- 1...Rxb2
- 2.Bxd4#
- 1...Kxb2!
- 1...Rxb2
- 1.g5?
- 1...Rxe6
- 2.Bxb4#
- 1...Rb3
- 2.Bxd4#
- 1...Rc4
- 2.Qxd3#
- 1...R4b5
- 2.Qxd3#
- 1...R6b5
- 2.Qxd3#
- 1...Rc6
- 2.Bxb4#
- 1...Rd6
- 2.Bxb4#
- 1...Bc4
- 2.Bxd4#
- 1...Bb5
- 2.Bxb4#
- 1...fxg5!
- 1...Rxe6
- 1.Kf4?
- Keys
- 1.Rf4!
- threat
- 2.Se4#
- 1...Rxe6
- 2.Bxb4#
- 1...Rc4
- 2.Qxd3#
- 1...Bc4
- 2.Bxd4#
- threat
- 1.Rf4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- R(f);N_GUARD::B(H),XP(g)
- R(f);S_CUTB(h)::QAR1(A),XP(c)
- R(f);P_PINB(H),S_CUTB(h)::QAR1(A),XP(c)
- R(i);P_PINB(H),S_CUTB(h)::QAR1(A),XP(c)
- R(i);N_GUARD::B(H),XR(f)
- R(i);N_GUARD,XB(J)::B(H),XR(f)
- B(h);S_CUTR(f)::B(H),XP(g)
- B(h);S_CUTR(i)::B(H),XR(f)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- R(i);N_GUARD,XB(J)::B(H),XR(f)
- R(f);N_GUARD::B(H),XP(g)
- R(f);S_CUTB(h)::QAR1(A),XP(c)
- R(i);S_CUTB(h)::QAR1(A),XP(c)
- R(i);N_GUARD::B(H),XR(f)
- B(h);S_CUTR(f)::B(H),XP(g)
- B(h);S_CUTR(i)::B(H),XR(f)
- Refutation
- P(j);
- Try
- K(I);S_FLIGHT
- Vars
- R(i);N_GUARD,XB(J)::B(H),XR(f)
- R(f);N_GUARD::B(H),XP(g)
- R(f);S_CUTB(h)::QAR1(A),XP(c)
- R(i);S_CUTB(h)::QAR1(A),XP(c)
- R(i);N_GUARD::B(H),XR(f)
- B(h);S_CUTR(f)::B(H),XP(g)
- B(h);S_CUTR(i)::B(H),XR(f)
- Refutation
- P(j);P_PINB(J)
- Try
- S(C);
- Threat
- QAB1(A),XP(a)
- Vars
- R(f);N_GUARD,XS(C)::B(H),XP(g)
- P(c);N_GUARD::QAR1(A)
- Refutation
- R(i);XB(J)
- Try
- S(C);
- Threat
- QAR1(A),XP(c)
- Vars
- K(b);P-FLIGHT,P_SPINP(a)::QAR1(A),XP(a)
- Refutation
- B(h);XS(C)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- R(f);XB(J)::QAR1(A),XP(c)
- B(h);XB(J)::B(H),XP(g)
- R(f);P_PINB(H)::QAR1(A),XP(c)
- R(i);P_PINB(H)::QAR1(A),XP(c)
- P(l);::QAR1(A),XP(c)
- Refutation
- P(l);CHECK
- Try
- R(D);
- Vars
- R(i);N_GUARD,XB(J)::B(H),XR(f)
- P(c);N_GUARD,XR(D)::QAR1(A)
- R(f);N_GUARD::B(H),XP(g)
- R(f);S_CUTB(h)::QAR1(A),XP(c)
- R(f);P_PINB(H),S_CUTB(h)::QAR1(A),XP(c)
- R(i);P_PINB(H),S_CUTB(h)::QAR1(A),XP(c)
- R(i);N_GUARD::B(H),XR(f)
- B(h);S_CUTR(f)::B(H),XP(g)
- B(h);S_CUTR(i)::B(H),XR(f)
- Refutation
- P(d);
- Try
- R(D);
- Vars
- R(i);N_GUARD,XB(J)::B(H),XR(f)
- R(f);N_GUARD::B(H),XP(g)
- R(f);S_CUTB(h)::QAR1(A),XP(c)
- R(f);P_PINB(H),S_CUTB(h)::QAR1(A),XP(c)
- R(i);P_PINB(H),S_CUTB(h)::QAR1(A),XP(c)
- R(i);N_GUARD::B(H),XR(f)
- B(h);S_CUTR(f)::B(H),XP(g)
- B(h);S_CUTR(i)::B(H),XR(f)
- Refutation
- P(d);
- Try
- R(F);
- Threat
- S(C)
- Vars
- R(i);N_GUARD,XB(J)::B(H),XR(f)
- R(f);S_CUTB(h)::QAR1(A),XP(c)
- Refutation
- B(h);
- Try
- R(F);P_PINP(c)
- Threat
- DUALS(2)
- Vars
- B(h);::QAR1(A)
- Refutation
- P(g);N_SPINP(c),XR(F)
- Try
- R(F);
- Threat
- S(C)
- Vars
- R(i);N_GUARD,XB(J)::B(H),XR(f)
- R(f);S_CUTB(h)::QAR1(A),XP(c)
- Refutation
- B(h);
- Try
- Q(A);CHECK,XP(a)
- Vars
- R(f);SBLOCK,XQ(A)::B(H),XP(g)
- Refutation
- K(b);S_FLIGHT,XQ(A)
- Try
- P(G);
- Vars
- R(i);N_GUARD,XB(J)::B(H),XR(f)
- R(f);N_GUARD::B(H),XP(g)
- R(f);S_CUTB(h)::QAR1(A),XP(c)
- R(f);P_PINB(H),S_CUTB(h)::QAR1(A),XP(c)
- R(i);P_PINB(H),S_CUTB(h)::QAR1(A),XP(c)
- R(i);N_GUARD::B(H),XR(f)
- B(h);S_CUTR(f)::B(H),XP(g)
- B(h);S_CUTR(i)::B(H),XR(f)
- Refutation
- P(j);XP(G)
- Try
- Actual
- R(F);
- Threat
- S(C)
- Vars
- R(i);N_GUARD,XB(J)::B(H),XR(f)
- R(f);S_CUTB(h)::QAR1(A),XP(c)
- B(h);S_CUTR(f)::B(H),XP(g)
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).