MESON Chess Problem Database
Problem Display
PID: 229694 (b7/2pn2Q1/N1rkp3/R3n1bp/B1P1p2r/2P3B1/3N4/2KR4 w - - 0 1)
Baumgarten, Ernst
Freie Presse, 1974
#2
10 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Sxe4#
- 1...Rxc4
- 2.Qxd7#
- 1...Rc5
- 2.Qxd7#
- 1...Rxa6
- 2.Qxd7#
- 1...Rb6
- 2.Qxd7#
- 1...Bxd2+
- 2.Rxd2#
- 1...Bf6
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 1...Be7
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 1...Bd8
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 1...Sc5
- 2.Bxe5#
- 1...Sb6
- 2.Bxe5#
- 1...Sf6
- 2.Bxe5#
- 1...Sb8
- 2.Bxe5#
- 1...Sf8
- 2.Bxe5#
- 1...e3
- 2.Se4#
- 1...Rf4
- Tries
- 1.Kb1?
- threat
- 2.Sxe4#
- 1...Bxd2
- 2.Rxd2#
- 1...e3
- 2.Se4#
- 1...Rb6+!
- threat
- 1.Kc2?
- threat
- 2.Sxe4#
- 1...Bxd2
- 2.Rxd2#
- 1...e3
- 2.Se4#
- 1...Rh2!
- threat
- 1.Sb8?
- threat
- 2.Qxd7#
- 1...Bxd2+
- 2.Rxd2#
- 1...Sxb8
- 2.Bxe5#
- 1...Rf4
- 2.Sxe4#
- 1...Be7
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 1...Sc5
- 2.Bxe5#
- 1...Sb6
- 2.Bxe5#
- 1...Sf6
- 2.Bxe5#
- 2.Qf8#
- 1...Sf8
- 2.Bxe5#
- 1...Bf4!
- threat
- 1.Bf4?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 1...Rxf4
- 2.Sxe4#
- 1...Rxc4
- 2.Sxc4#
- 2.Sxe4#
- 2.Qxd7#
- 1...Rxa6
- 2.Sxe4#
- 2.Qxd7#
- 1...Rh2
- 2.Sxe4#
- 1...Rh1
- 2.Sf1#
- 2.Sxe4#
- 1...Rh3
- 2.Sf3#
- 2.Sxe4#
- 1...Rc5
- 2.Sxe4#
- 2.Qxd7#
- 1...Rb6
- 2.Sxe4#
- 2.Qxd7#
- 1...Sc5
- 2.Sxe4#
- 2.Bxe5#
- 1...Sb6
- 2.Sxe4#
- 2.Bxe5#
- 1...Sf6
- 2.Sxe4#
- 2.Bxe5#
- 1...e3
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Se4#
- 1...Bxf4!
- threat
- 1.Rxe5?
- threat
- 2.Rd5#
- 1...Bxd2+
- 2.Rxd2#
- 1...Rxc4
- 2.Qxd7#
- 1...Sxe5
- 2.Bxe5#
- 1...Rf4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 1...Bf4!
- threat
- 1.Qf8+?
- 1...Be7
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 1...Sxf8!
- 1...Be7
- 1.Qxg5?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 1...Rxc4
- 2.Sxc4#
- 2.Sxe4#
- 1...Rxa6
- 2.Sxe4#
- 1...Sc5
- 2.Sxe4#
- 1...Sb6
- 2.Sxe4#
- 1...Rh2
- 2.Sxe4#
- 1...Rh1
- 2.Sf1#
- 2.Sxe4#
- 1...Rf4
- 2.Sxe4#
- 1...Rc5
- 2.Sxe4#
- 1...Rb6
- 2.Sxe4#
- 1...e3
- 2.Se4#
- 1...Sf6!
- threat
- 1.Qe7+?
- 1...Bxe7
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxe4#
- 1...Kxe7!
- 1...Bxe7
- 1.c5+?
- 1...Kd5
- 2.Sb4#
- 1...Rxc5
- 2.Qxd7#
- 1...Sxc5!
- 1...Kd5
- 1.Kb1?
- Keys
- 1.Sc5!
- threat
- 2.Qxd7#
- 1...Bxd2+
- 2.Rxd2#
- 1...Sxc5
- 2.Bxe5#
- 1...Rf4
- 2.Sdxe4#
- 1...Bf4
- 2.Sxe4#
- 1...Be7
- 2.Sb1#
- 2.Sf1#
- 2.Sdb3#
- 2.Sf3#
- 2.Sdxe4#
- 1...Sb6
- 2.Bxe5#
- 1...Sf6
- 2.Qf8#
- 1...Sb8
- 2.Bxe5#
- 1...Sf8
- 2.Bxe5#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(b);N_PINS(C),N_SPINS(c)::R(B)+S(C),DCHECK,XP(a)
- R(f);P_PINP(D),XP(G)::QAR1(J),XS(j)
- R(f);::QAR1(J),XS(j)
- R(f);XS(I)::QAR1(J),XS(j)
- B(d);CHECK,OGATE,P_SPINB(d),XS(C)::R(B),XB(d)
- S(j);N_GUARD::B(E),XS(c)
- P(a);N_PINS(C)::R(B)+S(C),DCHECK
- Tries
- Try
- K(A);N_SPINS(C),P-FLIGHT
- Threat
- R(B)+S(C),DCHECK,XP(a)
- Vars
- B(d);OGATE,P_SPINB(d),XS(C)::R(B),XB(d)
- P(a);::R(B)+S(C),DCHECK
- Refutation
- R(f);CHECK
- Try
- K(A);N_SPINS(C),P-FLIGHT
- Threat
- R(B)+S(C),DCHECK,XP(a)
- Vars
- B(d);OGATE,P_SPINB(d),XS(C)::R(B),XB(d)
- P(a);::R(B)+S(C),DCHECK
- Refutation
- R(b);P_PINS(C)
- Try
- S(I);
- Threat
- QAR1(J),XS(j)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XS(C)::R(B),XB(d)
- S(j);N_GUARD,XS(I)::B(E),XS(c)
- R(b);N_PINS(C),N_SPINS(c)::R(B)+S(C),DCHECK,XP(a)
- S(j);N_GUARD::B(E),XS(c)
- Refutation
- B(d);N_SPINS(c)
- Try
- B(E);N_SPINS(C)
- Threat
- DUALS(5)
- Vars
- R(b);N_SPINS(c),XB(E)::R(B)+S(C),DCHECK,XP(a)
- R(b);::R(B)+S(C),DCHECK,XP(a)
- Refutation
- B(d);N_SPINS(c),P_PINS(C),XB(E)
- Try
- R(H);XS(c)
- Threat
- B(E)+R(H),DCHECK
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XS(C)::R(B),XB(d)
- R(f);P_PINP(D),XP(G)::QAR1(J),XS(j)
- S(j);OGATE,P_SPINS(j),XR(H)::B(E),XS(j)
- Refutation
- B(d);
- Try
- Q(J);CHECK
- Refutation
- S(j);XQ(J)
- Try
- Q(J);N_SPINS(C),XB(d)
- Threat
- DUALS(5)
- Vars
- R(f);XS(I)::R(B)+S(C),DCHECK,XP(a)
- S(j);::R(B)+S(C),DCHECK,XP(a)
- R(b);::R(B)+S(C),DCHECK,XP(a)
- R(b);N_SPINS(c)::R(B)+S(C),DCHECK,XP(a)
- R(f);::R(B)+S(C),DCHECK,XP(a)
- P(a);::R(B)+S(C),DCHECK
- Refutation
- S(j);
- Try
- Q(J);CHECK
- Refutation
- K(g);N_SPINS(c),S_FLIGHT,XQ(J)
- Try
- P(G);CHECK
- Vars
- K(g);N_SPINS(c),P-FLIGHT::S(I)
- R(f);P_PINP(D),XP(G)::QAR1(J),XS(j)
- Refutation
- S(j);XP(G)
- Try
- Actual
- S(I);
- Threat
- QAR1(J),XS(j)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XS(C)::R(B),XB(d)
- S(j);N_GUARD,XS(I)::B(E),XS(c)
- R(b);N_PINS(C),N_SPINS(c)::R(B)+S(C),DCHECK,XP(a)
- B(d);N_SPINS(c),S_CUTR(b)::S(I),XP(a)
- S(j);N_GUARD::B(E),XS(c)
- S(j);N_GUARD,S_CUTB(d)::QAB(J)
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).