MESON Chess Problem Database
Problem Display
PID: 256515 (3Rq3/6B1/2r5/r2bnPb1/1P1k2N1/1P2RB2/2Q2P1p/1nK1N3 w - - 0 1)
Krelenbaum, Szaja
2nd Prize, Wiener Schachzeitung, 1936
#2
12 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qh5
- 2.Bxe5#
- 1...Qg6
- 2.Bxe5#
- 1...Qd7
- 2.Bxe5#
- 1...Qf7
- 2.Bxe5#
- 1...Qxd8
- 2.Bxe5#
- 1...Qf8
- 2.Bxe5#
- 1...Qg8
- 2.Bxe5#
- 1...Ra1
- 2.Rxd5#
- 1...Ra2
- 2.Rxd5#
- 1...Ra3
- 2.Rxd5#
- 1...Ra4
- 2.Rxd5#
- 1...Raa6
- 2.Rxd5#
- 1...Ra7
- 2.Rxd5#
- 1...Ra8
- 2.Rxd5#
- 1...Rxc2+
- 2.Sxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rca6
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rb6
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rd6
- 2.Qd3#
- 1...Re6
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rf6
- 2.Qe4#
- 1...Rg6
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rh6
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Bxe3+
- 2.fxe3#
- 1...Bh4
- 2.Rd3#
- 2.Re4#
- 1...Bf6
- 2.Re4#
- 1...Be7
- 2.Bxe5#
- 2.Rd3#
- 2.Re4#
- 1...Bxd8
- 2.Rd3#
- 1...Sd2
- 2.Rd3#
- 1...Sc3
- 2.Qd3#
- 2.Qd2#
- 1...Qh5
- Tries
- 1.Kxb1?
- threat
- 2.Rd3#
- 2.Re4#
- 2.Qd1#
- 2.Qd3#
- 2.Qe4#
- 2.Qd2#
- 1...Qxd8
- 2.Bxe5#
- 2.Rd3#
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 1...Rxc2
- 2.Sxc2#
- 2.Rd3#
- 1...Bxe3
- 2.Qd3#
- 2.fxe3#
- 1...Bxd8
- 2.Rd3#
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 1...Qd7
- 2.Bxe5#
- 2.Rd3#
- 2.Qd1#
- 2.Qd3#
- 2.Qd2#
- 1...Ra2
- 2.Rd3#
- 2.Re4#
- 2.Rxd5#
- 2.Qd3#
- 2.Qe4#
- 1...Rc3
- 2.Re4#
- 2.Qe4#
- 2.Qxc3#
- 1...Rd6
- 2.Rd3#
- 2.Qd1#
- 2.Qd3#
- 2.Qb2#
- 2.Qd2#
- 2.Qc3#
- 1...Rf6
- 2.Re4#
- 2.Qe4#
- 2.Qb2#
- 2.Qc3#
- 1...Bf6
- 2.Re4#
- 2.Qe4#
- 1...Ra1+!
- threat
- 1.Kd1?
- threat
- 2.Rd3#
- 2.Re4#
- 2.Qd3#
- 2.Qe4#
- 1...Qxd8
- 2.Bxe5#
- 2.Rd3#
- 2.Qd3#
- 1...Rxc2
- 2.Sxc2#
- 2.Rd3#
- 1...Bxe3
- 2.Qd3#
- 2.fxe3#
- 1...Bxd8
- 2.Rd3#
- 2.Qd3#
- 1...Qd7
- 2.Bxe5#
- 2.Rd3#
- 2.Qd3#
- 1...Rc3
- 2.Re4#
- 2.Qe4#
- 1...Rd6
- 2.Rd3#
- 2.Qd3#
- 1...Rf6
- 2.Re4#
- 2.Qe4#
- 1...Bf6
- 2.Re4#
- 2.Qe4#
- 1...Sd2
- 2.Rd3#
- 2.Qd3#
- 2.Qxd2#
- 1...Sc3+!
- threat
- 1.Kb2?
- threat
- 2.Rd3#
- 2.Re4#
- 2.Qd3#
- 2.Qe4#
- 1...Rxc2+
- 2.Sxc2#
- 1...Qxd8
- 2.Bxe5#
- 2.Rd3#
- 2.Qd3#
- 1...Bxe3
- 2.Qd3#
- 2.Qe4#
- 2.fxe3#
- 1...Bxd8
- 2.Rd3#
- 2.Qd3#
- 1...Qd7
- 2.Bxe5#
- 2.Rd3#
- 2.Qd3#
- 1...Rc3
- 2.Re4#
- 2.Qe4#
- 1...Rd6
- 2.Rd3#
- 2.Qd3#
- 1...Rf6
- 2.Re4#
- 2.Qe4#
- 1...Bf6
- 2.Re4#
- 2.Qe4#
- 1...Sd2
- 2.Rd3#
- 2.Qd3#
- 2.Qxd2#
- 1...Sc3
- 2.Rd3#
- 2.Qd3#
- 2.Qd2#
- 1...Ra2+!
- threat
- 1.Sxe5?
- threat
- 2.Sxc6#
- 1...Rxc2+
- 2.Sxc2#
- 1...Qxe5
- 2.Bxe5#
- 1...Rc3
- 2.Sc6#
- 1...Rc4
- 2.Sc6#
- 2.Qxc4#
- 1...Rcc5
- 2.Sc6#
- 1...Rca6
- 2.Sc6#
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rb6
- 2.Sc6#
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rd6
- 2.Sc6#
- 2.Qd3#
- 1...Re6
- 2.Sc6#
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rf6
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rg6
- 2.Sc6#
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rh6
- 2.Sc6#
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Rc7
- 2.Sc6#
- 1...Rc8
- 2.Sc6#
- 1...Bf6
- 2.Re4#
- 1...Bxe3+!
- threat
- 1.Qc3+?
- 1...Sxc3
- 2.Sc2#
- 1...Rxc3+!
- 1...Sxc3
- 1.Qxc6?
- threat
- 2.Sc2#
- 2.Qc4#
- 1...Rc5+
- 2.Qxc5#
- 1...Bxe3+
- 2.fxe3#
- 1...Qxd8
- 2.Sc2#
- 2.Bxe5#
- 1...Bxd8
- 2.Sc2#
- 2.Rd3#
- 1...h1Q
- 2.Qc4#
- 1...h1R
- 2.Qc4#
- 1...Qd7
- 2.Sc2#
- 2.Bxe5#
- 1...Ra2
- 2.Rxd5#
- 2.Qxd5#
- 2.Qc4#
- 2.Qc5#
- 2.Qb6#
- 1...Bf6
- 2.Sc2#
- 2.Re4#
- 1...Sd2
- 2.Sc2#
- 2.Rd3#
- 2.Qc3#
- 1...Sa3
- 2.Qc3#
- 1...Qxc6+!
- threat
- 1.Kxb1?
- Keys
- 1.Bh1!
- threat
- 2.Sf3#
- 1...Rxc2+
- 2.Sxc2#
- 1...Bxe3+
- 2.fxe3#
- 1...Qxd8
- 2.Bxe5#
- 1...Bxd8
- 2.Rd3#
- 1...Qd7
- 2.Bxe5#
- 1...Rd6
- 2.Qd3#
- 1...Rf6
- 2.Qe4#
- 1...Bf6
- 2.Re4#
- 1...Sd2
- 2.Rd3#
- threat
- 1.Bh1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- Q(i);N_GUARD::B(K),XS(f)
- Q(i);N_GUARD,N_SPINB(e)::B(K),XS(f)
- Q(i);N_GUARD,N_SPINB(e),XR(L)::B(K),XS(f)
- R(d);N_GUARD::R1(L),XB(e)
- R(h);CHECK,XQ(C)::S(B),XR(h)
- R(h);N_GUARD::QAR1(C),XR(h)
- R(h);N_PINQ(C),N_SPINB(e)::QAR1(C)
- R(h);N_PINQ(C),N_SPINS(f)::QAR1(C)
- B(g);CHECK,OGATE,XR(F)::P(D),XB(g)
- B(g);N_PINR(F),N_SPINS(f)::R1(F)
- B(g);N_PINR(F),N_SPINB(e),XR(L)::R1(F)
- S(a);N_PINR(F)::R1(F)
- Tries
- Try
- K(A);N_SPINQ(C),N_SPINR(F),P-FLIGHT,XS(a)
- Threat
- DUALS(6)
- Refutation
- R(d);CHECK
- Try
- K(A);N_SPINQ(C),N_SPINR(F),P-FLIGHT
- Threat
- DUALS(4)
- Refutation
- S(a);CHECK
- Try
- K(A);N_SPINQ(C),N_SPINR(F),S_FLIGHT
- Threat
- DUALS(4)
- Vars
- R(h);CHECK,XQ(C)::S(B),XR(h)
- Refutation
- R(d);CHECK
- Try
- S(I);XS(f)
- Threat
- B(K)+S(I),DCHECK,XR(h)
- Vars
- R(h);CHECK,XQ(C)::S(B),XR(h)
- Q(i);OGATE,P_SPINQ(i),XS(I)::B(K),XQ(i)
- R(h);::B(K)+S(I),DCHECK
- B(g);N_PINR(F)::R1(F)
- Refutation
- B(g);CHECK,XR(F)
- Try
- Q(C);CHECK
- Vars
- S(a);XQ(C)::S(B)
- Refutation
- R(h);CHECK,XQ(C)
- Try
- Q(C);N_SPINQ(C),XR(h)
- Threat
- DUALS(2)
- Vars
- R(d);CHECK,N_GUARD::QAB1(C),XR(d)
- B(g);CHECK,OGATE,XR(F)::P(D),XB(g)
- P(b);P_PINS(B)::QAR1(C)
- S(a);N_GUARD::QAB1(C)
- Refutation
- Q(i);CHECK,XQ(C)
- Try
- Actual
- B(G);
- Threat
- S(B)
- Vars
- R(h);CHECK,XQ(C)::S(B),XR(h)
- B(g);CHECK,OGATE,XR(F)::P(D),XB(g)
- Q(i);N_GUARD,N_SPINB(e),XR(L)::B(K),XS(f)
- B(g);N_PINR(F),N_SPINB(e),XR(L)::R1(F)
- Q(i);N_GUARD,N_SPINB(e)::B(K),XS(f)
- R(h);N_PINQ(C),N_SPINB(e)::QAR1(C)
- R(h);N_PINQ(C),N_SPINS(f)::QAR1(C)
- B(g);N_PINR(F),N_SPINS(f)::R1(F)
- S(a);N_PINR(F)::R1(F)
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).