MESON Chess Problem Database
Problem Display
PID: 38869 (6Bn/5r2/1B1p2p1/bPpk2Kb/5Rp1/1r2R1N1/Q1p4P/n4N2 w - - 0 1)
Neumann, Itzhak
3rd HM., BCF 019. Ty., 1935-1936
#2
10 + 12
| 5828 | My Selected Chess Problems (Neumann) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Qa8#
- 1...Bd2
- 2.Qa8#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...Bxb6
- 2.Qa8#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...c4
- 2.Rd4#
- 1...Be1
- Tries
- 1.Kh4?
- 1...Bxb6
- 2.Qa8#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...Be1
- 2.Qa8#
- 1...Bd2
- 2.Qa8#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...c4
- 2.Rd4#
- 1...g5+!
- 1...Bxb6
- 1.Kh6?
- 1...Bxb6
- 2.Qa8#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...Be1
- 2.Qa8#
- 1...Bd2
- 2.Qa8#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...c4
- 2.Rd4#
- 1...g5!
- 1...Bxb6
- 1.Sh1?
- 1...Bxb6
- 2.Qa8#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...Be1
- 2.Qa8#
- 1...Bd2
- 2.Qa8#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...c4
- 2.Rd4#
- 1...g3!
- 1...Bxb6
- 1.Sxh5?
- threat
- 2.Sf6#
- 1...Bc3
- 2.Qa8#
- 1...gxh5!
- threat
- 1.Bxa5?
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...c4!
- 1...c1Q
- 1.Bc7?
- 1...Bxc7
- 2.Qa8#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...Be1
- 2.Qa8#
- 1...Bd2
- 2.Qa8#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...Bb6
- 2.Qa8#
- 1...c4!
- 1...Bxc7
- 1.Rd3+?
- 1...Ke5
- 2.Re4#
- 1...Ke6!
- 1...Ke5
- 1.Rxg4?
- 1...Bxb6
- 2.Qa8#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...Be1
- 2.Qa8#
- 1...Bd2
- 2.Qa8#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...c4
- 2.Rd4#
- 1...Bxg4!
- 1...Bxb6
- 1.Qxb3+?
- 1...c4
- 2.Rd4#
- 2.Qxc4#
- 1...Sxb3!
- 1...c4
- 1.h3?
- 1...Bxb6
- 2.Qa8#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...Be1
- 2.Qa8#
- 1...Bd2
- 2.Qa8#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...c4
- 2.Rd4#
- 1...gxh3!
- 1...Bxb6
- 1.h4?
- 1...Bxb6
- 2.Qa8#
- 1...c1Q
- 2.Qg2#
- 1...c1S
- 2.Qg2#
- 1...c1B
- 2.Qg2#
- 1...c1R
- 2.Qg2#
- 1...Be1
- 2.Qa8#
- 1...Bd2
- 2.Qa8#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...c4
- 2.Rd4#
- 1...gxh4 ep!
- 1...Bxb6
- 1.Kh4?
- Keys
- 1.Se4!
- threat
- 2.Sf6#
- 1...Kc4
- 2.Sc3#
- 1...Kd4
- 2.Sf6#
- 1...Ke5
- 2.Sc3#
- 1...Ke6
- 2.Sf6#
- 1...Bc3
- 2.Sxc3#
- threat
- 1.Se4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- B(e);OGATE::QAB(B)
- B(e);OGATE,XB(I)::QAB(B)
- P(b);OGATE::QAB(B)
- P(f);N_GUARD,N_SPINR(c),P_SPINR(k)::R1(F)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- B(e);OGATE,XB(I)::QAB(B)
- P(b);OGATE::QAB(B)
- B(e);OGATE,P_PINS(E)::QAB(B)
- B(e);OGATE::QAB(B)
- P(f);N_GUARD,N_SPINR(c),P_SPINR(k)::R1(F)
- Refutation
- P(j);CHECK
- Try
- K(H);S_FLIGHT
- Vars
- B(e);OGATE,XB(I)::QAB(B)
- P(b);OGATE::QAB(B)
- B(e);OGATE::QAB(B)
- P(f);N_GUARD,N_SPINR(c),P_SPINR(k)::R1(F)
- Refutation
- P(j);
- Try
- S(E);
- Vars
- B(e);OGATE,XB(I)::QAB(B)
- P(b);OGATE::QAB(B)
- B(e);OGATE::QAB(B)
- P(f);N_GUARD,N_SPINR(c),P_SPINR(k)::R1(F)
- Refutation
- P(d);
- Try
- S(E);XB(h)
- Threat
- S(E)
- Vars
- B(e);OGATE::QAB(B)
- Refutation
- P(j);XS(E)
- Try
- B(I);XB(e)
- Vars
- P(b);OGATE::QAB(B)
- Refutation
- P(f);N_SPINR(c),P_SPINR(k)
- Try
- B(I);
- Vars
- B(e);OGATE,XB(I)::QAB(B)
- P(b);OGATE::QAB(B)
- B(e);OGATE::QAB(B)
- Refutation
- P(f);N_SPINR(c),P_SPINR(k)
- Try
- R(D);CHECK
- Vars
- K(g);N_SPINR(c),P-FLIGHT::R1(F)
- Refutation
- K(g);S_FLIGHT
- Try
- R(F);XP(d)
- Vars
- B(e);OGATE,XB(I)::QAB(B)
- P(b);OGATE,P_PINR(D)::QAB(B)
- P(b);OGATE::QAB(B)
- B(e);OGATE::QAB(B)
- B(e);OGATE,P_PINR(D)::QAB(B)
- P(f);N_GUARD,N_SPINR(c),P_SPINR(k)::R1(F)
- Refutation
- B(h);XR(F)
- Try
- Q(B);CHECK,P_PINR(k),XR(c)
- Refutation
- S(a);XQ(B)
- Try
- P(C);
- Vars
- B(e);OGATE,XB(I)::QAB(B)
- P(b);OGATE::QAB(B)
- B(e);OGATE::QAB(B)
- P(f);N_GUARD,N_SPINR(c),P_SPINR(k)::R1(F)
- Refutation
- P(d);XP(C)
- Try
- P(C);
- Vars
- B(e);OGATE,XB(I)::QAB(B)
- P(b);OGATE::QAB(B)
- B(e);OGATE::QAB(B)
- P(f);N_GUARD,N_SPINR(c),P_SPINR(k)::R1(F)
- Refutation
- P(d);EP,XP(C)
- Try
- Actual
- S(E);
- Threat
- S(E)
- Vars
- K(g);S_FLIGHT::R(F)+S(E)
- K(g);N_SPINR(c),P-FLIGHT,P_SPINP(f)::R(F)+S(E)
- K(g);N_SPINR(c),P-FLIGHT::R(D)+S(E)
- K(g);S_FLIGHT::R(D)+S(E)
- B(e);N_GUARD::S(E),XB(e)
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).