MESON Chess Problem Database
Problem Display
PID: 149906 (8/1P1RP2q/PBb1Q1np/K1N4r/P3pn2/1Pppk1P1/1R3p2/1N1B4 w - - 0 1)
Busack, Otto
Deutsche Schachblatter, 1939
#2
14 + 11
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Sxd3#
- 2.Sxe4#
- 1...Rh2
- 2.Sxd3#
- 2.Sxe4#
- 1...Rh3
- 2.Sxd3#
- 2.Sxe4#
- 1...Rh4
- 2.Sxd3#
- 2.Sxe4#
- 1...Rxc5+
- 2.Bxc5#
- 1...Rd5
- 2.Qxe4#
- 1...Bxa4
- 2.Qxe4#
- 1...Bb5
- 2.Qxe4#
- 1...Bd5
- 2.Sxe4#
- 1...Bxd7
- 2.Qxe4#
- 1...Se2
- 2.Rxd3#
- 1...Sg2
- 2.Rxd3#
- 1...Sh3
- 2.Rxd3#
- 1...Sd5
- 2.Qxe4#
- 1...Se5
- 2.Sxd3#
- 1...Rh1
- Tries
- 1.Sd2?
- threat
- 2.Sf1#
- 2.Sc4#
- 1...Rxc5+
- 2.Bxc5#
- 1...Bxd7
- 2.Qxe4#
- 1...Rd5
- 2.Qxe4#
- 1...Bd5
- 2.Scxe4#
- 1...Sd5
- 2.Qxe4#
- 1...f1Q
- 2.Sxf1#
- 2.Sc4#
- 1...f1S
- 2.Sxf1#
- 2.Sc4#
- 1...f1B
- 2.Sxf1#
- 2.Sc4#
- 1...f1R
- 2.Sxf1#
- 2.Sc4#
- 1...Rh1
- 2.Sc4#
- 2.Sxd3#
- 2.Scxe4#
- 1...Bb5
- 2.Sf1#
- 2.Qxe4#
- 1...Se2
- 2.Rxd3#
- 1...Se5
- 2.Sf1#
- 2.Sxd3#
- 2.Scxe4#
- 1...cxd2!
- threat
- 1.Rd5?
- threat
- 2.Sxd3#
- 2.Sxe4#
- 2.Sd7#
- 2.Qxe4#
- 1...Rxd5
- 2.Qxe4#
- 1...Bxd5
- 2.Sxe4#
- 2.Sd7#
- 1...Sxd5
- 2.Qxe4#
- 1...Sxe6
- 2.Sxe6#
- 1...Sxe7
- 2.Sxd3#
- 2.Sxe4#
- 2.Sd7#
- 1...Se2
- 2.Rxd3#
- 2.Qxe4#
- 1...Qg7
- 2.Qxe4#
- 1...Qh8
- 2.Qxe4#
- 1...Re5
- 2.Sxd3#
- 2.Sd7#
- 1...Bd7
- 2.Sxd3#
- 2.Sxe4#
- 2.Sxd7#
- 2.Qxe4#
- 1...Sh4
- 2.Sxd3#
- 2.Sxe4#
- 2.Sd7#
- 1...Se5
- 2.Sxd3#
- 2.Sd7#
- 1...Sf8
- 2.Sxd3#
- 2.Sxe4#
- 2.Sd7#
- 1...Sh8
- 2.Sxd3#
- 2.Sxe4#
- 2.Sd7#
- 1...d2
- 2.Sd3#
- 2.Sxe4#
- 2.Sd7#
- 2.Qxe4#
- 1...Qxe7!
- threat
- 1.Qe5?
- threat
- 2.Sxd3#
- 2.Sxe4#
- 2.Se6#
- 2.Qd4#
- 1...Qxe7
- 2.Qd4#
- 1...Bxd7
- 2.Sxe4#
- 2.Se6#
- 2.Sxd7#
- 2.Qxe4#
- 1...Sxe5
- 2.Sxd3#
- 2.Se6#
- 1...Se2
- 2.Rxd3#
- 1...Qg7
- 2.Sxd3#
- 2.Sxe4#
- 2.Se6#
- 1...Qh8
- 2.Sxd3#
- 2.Sxe4#
- 2.Se6#
- 1...Bd5
- 2.Sxe4#
- 2.Se6#
- 1...Sd5
- 2.Qxe4#
- 1...Se6
- 2.Sxe6#
- 2.Rxd3#
- 1...d2
- 2.Sd3#
- 2.Sxe4#
- 2.Se6#
- 2.Qd4#
- 1...Rxe5!
- threat
- 1.Sd2?
- Keys
- 1.Sa3!
- threat
- 2.Sc4#
- 1...Rxc5+
- 2.Bxc5#
- 1...Bxd7
- 2.Qxe4#
- 1...Rd5
- 2.Qxe4#
- 1...Bd5
- 2.Sxe4#
- 1...Se2
- 2.Rxd3#
- 1...Sd5
- 2.Qxe4#
- 1...Bb5
- 2.Qxe4#
- 1...Se5
- 2.Sxd3#
- threat
- 1.Sa3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- R(g);CHECK,OGATE,P_SPINR(g),XS(H)::B(J),XR(g)
- R(g);S_CUTB(h)::QAR1(K),XP(e)
- B(h);N_GUARD,XP(F)::QAR1(K),XP(e)
- B(h);N_GUARD,N_PINS(H)::QAR1(K),XP(e)
- B(h);N_PINS(H)::B(J)+S(H),XP(e)
- B(h);N_GUARD,XR(M)::QAR1(K),XP(e)
- S(f);N_GUARD::R1(M),XP(c)
- S(f);N_PINS(H),S_CUTB(h)::QAR1(K),XP(e)
- S(i);N_PINS(H),N_SPINP(e)::B(J)+S(H),XP(c)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK,OGATE,P_SPINR(g),XS(H)::B(J),XR(g)
- B(h);N_GUARD,XR(M)::QAR1(K),XP(e)
- R(g);S_CUTB(h)::QAR1(K),XP(e)
- B(h);N_PINS(H)::B(J)+S(H),XP(e)
- S(f);N_PINS(H),S_CUTB(h)::QAR1(K),XP(e)
- S(f);N_GUARD::R1(M),XP(c)
- Refutation
- P(b);XS(A)
- Try
- R(M);N_SPINS(H)
- Threat
- DUALS(4)
- Vars
- R(g);P_PINS(H),XR(M)::QAR1(K),XP(e)
- S(f);XR(M)::QAR1(K),XP(e)
- S(f);N_SPINP(e),XQ(K)::B(J)+S(H),XS(f)
- Q(k);::QAR1(K),XP(e)
- Refutation
- Q(k);XP(N)
- Try
- Q(K);N_SPINS(H)
- Threat
- DUALS(4)
- Vars
- Q(k);XP(N)::QAB1(K)
- S(f);N_GUARD::R1(M),XP(c)
- S(f);S_CUTB(h)::QAR1(K),XP(e)
- Refutation
- R(g);N_SPINP(e),P_PINS(H),XQ(K)
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- R(g);CHECK,OGATE,P_SPINR(g),XS(H)::B(J),XR(g)
- B(h);N_GUARD,XR(M)::QAR1(K),XP(e)
- R(g);S_CUTB(h)::QAR1(K),XP(e)
- B(h);N_PINS(H)::B(J)+S(H),XP(e)
- S(f);N_GUARD::R1(M),XP(c)
- S(f);N_PINS(H),S_CUTB(h)::QAR1(K),XP(e)
- B(h);N_GUARD,N_PINS(H)::QAR1(K),XP(e)
- S(i);N_PINS(H),N_SPINP(e)::B(J)+S(H),XP(c)
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).