MESON Chess Problem Database
Problem Display
PID: 194277 (8/3K4/2R5/8/1p2NQ2/B1nk4/2Nn2R1/3r4 w - - 0 1)
Wurzburg, Otto
Pittsburgh Gazette-Times, 1917
#2
7 + 5
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rxd2#
- 1...Rb1
- 2.Rxd2#
- 1...Rc1
- 2.Rxd2#
- 1...Re1
- 2.Rxd2#
- 1...Rf1
- 2.Rxd2#
- 1...Rg1
- 2.Rxd2#
- 1...Rh1
- 2.Rxd2#
- 1...Sdb1
- 2.Sc5#
- 2.Qe3#
- 2.Qf3#
- 1...Sf1
- 2.Sc5#
- 1...Sb3
- 2.Qe3#
- 2.Qf3#
- 1...Sf3
- 2.Sc5#
- 2.Qe3#
- 2.Qxf3#
- 1...Sc4
- 2.Sc5#
- 1...Sdxe4
- 2.Qe3#
- 2.Qf3#
- 1...Scb1
- 2.Qe3#
- 1...Sa2
- 2.Qe3#
- 1...Se2
- 2.Sf2#
- 2.Qe3#
- 1...Sa4
- 2.Qe3#
- 1...Scxe4
- 2.Qe3#
- 1...Sb5
- 2.Qe3#
- 1...bxa3
- 2.Rxc3#
- 1...b3
- 2.Rxc3#
- 1...Ra1
- Tries
- 1.Se1+?
- 1...Rxe1
- 2.Rxd2#
- 1...Kd4!
- 1...Rxe1
- 1.Sxd2?
- threat
- 2.Sxb4#
- 1...Kxc2
- 2.Qe4#
- 2.Qf5#
- 1...bxa3
- 2.Sb4#
- 1...Sd5
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qf5#
- 1...Sa2
- 2.Qe3#
- 2.Qg3#
- 2.Qd6#
- 2.Qf3#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qf5#
- 1...Se4
- 2.Qe3#
- 2.Qf3#
- 2.Qxe4#
- 1...b3
- 2.Sb4#
- 1...Rb1!
- threat
- 1.Sxc3?
- threat
- 2.Sxb4#
- 1...bxa3
- 2.Sb4#
- 1...bxc3
- 2.Sb4#
- 1...Rb1
- 2.Rxd2#
- 2.Qxd2#
- 1...Sc4
- 2.Qxc4#
- 2.Qd4#
- 1...Se4
- 2.Qe3#
- 2.Qf3#
- 2.Qxe4#
- 1...b3
- 2.Sb4#
- 1...Kxc2!
- threat
- 1.Sg3?
- threat
- 2.Sxb4#
- 1...bxa3
- 2.Sb4#
- 1...Sd5
- 2.Qd4#
- 1...Rb1
- 2.Rxd2#
- 2.Qxd2#
- 1...Sde4
- 2.Qe3#
- 2.Qf3#
- 1...Sa2
- 2.Qe3#
- 2.Qd6#
- 2.Qd4#
- 1...Sce4
- 2.Qe3#
- 1...b3
- 2.Sb4#
- 1...Kxc2!
- threat
- 1.Sg5?
- threat
- 2.Sxb4#
- 1...bxa3
- 2.Sb4#
- 1...Sd5
- 2.Qd4#
- 1...Rb1
- 2.Rxd2#
- 2.Qxd2#
- 1...Sde4
- 2.Qe3#
- 2.Qf3#
- 1...Sa2
- 2.Qe3#
- 2.Qd6#
- 2.Qd4#
- 1...Sce4
- 2.Qe3#
- 1...b3
- 2.Sb4#
- 1...Kxc2!
- threat
- 1.Sd6?
- threat
- 2.Sxb4#
- 1...bxa3
- 2.Sb4#
- 1...Sd5
- 2.Qd4#
- 1...Rb1
- 2.Rxd2#
- 2.Qxd2#
- 1...Sde4
- 2.Qe3#
- 2.Qf3#
- 1...Sa2
- 2.Qe3#
- 2.Qd4#
- 1...Sce4
- 2.Qe3#
- 1...b3
- 2.Sb4#
- 1...Kxc2!
- threat
- 1.Sf6?
- threat
- 2.Sxb4#
- 1...bxa3
- 2.Sb4#
- 1...Sd5
- 2.Qd4#
- 1...Rb1
- 2.Rxd2#
- 2.Qxd2#
- 1...Sde4
- 2.Qe3#
- 2.Qf3#
- 1...Sa2
- 2.Qe3#
- 2.Qd6#
- 2.Qd4#
- 1...Sce4
- 2.Qe3#
- 1...b3
- 2.Sb4#
- 1...Kxc2!
- threat
- 1.Qg4?
- 1...Sdxe4
- 2.Qf3#
- 1...Scxe4
- 2.Qe2#
- 1...bxa3
- 2.Rxc3#
- 1...Sd5
- 2.Sf2#
- 2.Qe2#
- 1...Ra1
- 2.Rxd2#
- 1...Rb1
- 2.Rxd2#
- 1...Rc1
- 2.Rxd2#
- 1...Re1
- 2.Rxd2#
- 1...Rf1
- 2.Rxd2#
- 1...Rg1
- 2.Rxd2#
- 1...Rh1
- 2.Rxd2#
- 1...Sdb1
- 2.Sc5#
- 2.Qf3#
- 1...Sf1
- 2.Sc5#
- 1...Sb3
- 2.Qf3#
- 1...Sf3
- 2.Sc5#
- 2.Qxf3#
- 1...Sc4
- 2.Sc5#
- 1...Scb1
- 2.Sf2#
- 2.Qe2#
- 1...Sa2
- 2.Sf2#
- 2.Qe2#
- 1...Se2
- 2.Sf2#
- 2.Qxe2#
- 1...Sa4
- 2.Sf2#
- 2.Qe2#
- 1...Sb5
- 2.Sf2#
- 2.Qe2#
- 1...b3
- 2.Rxc3#
- 1...Kxc2!
- 1...Sdxe4
- 1.Se1+?
- Keys
- 1.Qf5!
- 1...Kxc2
- 2.Sxd2#
- 1...Sdxe4
- 2.Qf3#
- 1...Scxe4
- 2.Qd5#
- 1...bxa3
- 2.Rxc3#
- 1...Sd5
- 2.Sxd2#
- 2.Qxd5#
- 1...Ra1
- 2.Rxd2#
- 1...Rb1
- 2.Rxd2#
- 1...Rc1
- 2.Rxd2#
- 1...Re1
- 2.Rxd2#
- 1...Rf1
- 2.Rxd2#
- 1...Rg1
- 2.Rxd2#
- 1...Rh1
- 2.Rxd2#
- 1...Sdb1
- 2.Sxc3#
- 2.Qf3#
- 1...Sf1
- 2.Sxc3#
- 1...Sb3
- 2.Sxc3#
- 2.Qf3#
- 1...Sf3
- 2.Sxc3#
- 2.Qxf3#
- 1...Sc4
- 2.Sc5#
- 1...Scb1
- 2.Sxd2#
- 2.Qd5#
- 1...Sa2
- 2.Sxd2#
- 2.Qd5#
- 1...Se2
- 2.Sf2#
- 1...Sa4
- 2.Sxd2#
- 2.Qd5#
- 1...Sb5
- 2.Sxd2#
- 1...b3
- 2.Rxc3#
- 1...Kxc2
- 1.Qf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(a);N_GUARD::R1(B),XS(b)
- S(b);::S(D)
- S(c);::QAR1(E)
- S(c);XS(D)::QAR1(E)
- P(e);N_GUARD,XB(C)::R1(F),XS(c)
- P(e);N_GUARD::R1(F),XS(c)
- Tries
- Try
- S(A);CHECK
- Vars
- R(a);XS(A)::R1(B),XS(b)
- Refutation
- K(d);P-FLIGHT
- Try
- S(D);XS(b)
- Threat
- S(A),XP(e)
- Vars
- P(e);XB(C)::S(A)
- P(e);::S(A)
- Refutation
- R(a);
- Try
- S(D);XS(c)
- Threat
- S(A),XP(e)
- Vars
- P(e);XB(C)::S(A)
- P(e);XS(D)::S(A)
- P(e);::S(A)
- Refutation
- K(d);P_SPINS(b),S_FLIGHT,XS(A)
- Try
- S(D);
- Threat
- S(A),XP(e)
- Vars
- P(e);XB(C)::S(A)
- S(c);::QAR1(E)
- P(e);::S(A)
- Refutation
- K(d);P_SPINS(b),S_FLIGHT,XS(A)
- Try
- S(D);
- Threat
- S(A),XP(e)
- Vars
- P(e);XB(C)::S(A)
- S(c);::QAR1(E)
- P(e);::S(A)
- Refutation
- K(d);P_SPINS(b),S_FLIGHT,XS(A)
- Try
- S(D);
- Threat
- S(A),XP(e)
- Vars
- P(e);XB(C)::S(A)
- S(c);::QAR1(E)
- P(e);::S(A)
- Refutation
- K(d);P_SPINS(b),S_FLIGHT,XS(A)
- Try
- S(D);
- Threat
- S(A),XP(e)
- Vars
- P(e);XB(C)::S(A)
- S(c);::QAR1(E)
- P(e);::S(A)
- Refutation
- K(d);P_SPINS(b),S_FLIGHT,XS(A)
- Try
- Q(E);
- Vars
- S(b);N_GUARD,XS(D)::QAR2(E)
- S(c);N_GUARD,XS(D)::QAB1(E)
- P(e);N_GUARD,XB(C)::R1(F),XS(c)
- R(a);N_GUARD::R1(B),XS(b)
- S(b);::S(D)
- S(b);N_GUARD::QAR2(E)
- P(e);N_GUARD::R1(F),XS(c)
- Refutation
- K(d);P_SPINS(b),S_FLIGHT,XS(A)
- Try
- Actual
- Q(E);
- Vars
- K(d);P_SPINS(b),S_FLIGHT,XS(A)::QAB(E)+S(D),XS(b)
- S(b);N_GUARD,P_SPINS(b),XS(D)::QAR2(E)
- S(c);N_GUARD,P_SPINS(c),XS(D)::QAR2(E)
- P(e);N_GUARD,XB(C)::R1(F),XS(c)
- R(a);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD::QAB(E)+S(D),XS(c)
- S(b);SBLOCK::QAB(E)+S(D),DCHECK
- S(c);SBLOCK::QAB(E)+S(D),DCHECK
- S(c);N_GUARD::QAB(E)+S(D),XS(b)
- P(e);N_GUARD::R1(F),XS(c)
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