MESON Chess Problem Database
Problem Display
PID: 203558 (n7/PK3B1b/8/1p1NR3/1Pkpq1R1/Q7/7r/4N3 w - - 0 1)
Kovacs, Florian Janos
1st HM., L'Italia Scacchistica, 1924
#2
9 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qc3#
- 1...Qh1
- 2.Qc3#
- 1...Qc2
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Qg2
- 2.Qc3#
- 1...Qd3
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Qxd5+
- 2.Bxd5#
- 1...Qf5
- 2.Se3#
- 2.Sb6#
- 2.Qc3#
- 1...Qg6
- 2.Se3#
- 2.Sb6#
- 2.Qc3#
- 1...Qxe1
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Qe2
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qc3#
- 1...Qe3
- 2.Sc3#
- 2.Sxe3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Qf4
- 2.Se3#
- 2.Sxf4#
- 2.Sb6#
- 2.Sf6#
- 1...Qxg4
- 2.Se3#
- 2.Sb6#
- 1...Qxe5
- 2.Se3#
- 2.Sb6#
- 2.Qc3#
- 1...Rh1
- 2.Qa2#
- 1...Ra2
- 2.Qxa2#
- 1...Rh4
- 2.Qa2#
- 1...Rh5
- 2.Qa2#
- 1...Rh6
- 2.Qa2#
- 1...d3
- 2.Qc3#
- 2.Qxd3#
- 1...Qb1
- Tries
- 1.Ka6?
- threat
- 2.Se3#
- 2.Sb6#
- 1...Qg6+
- 2.Sb6#
- 1...Rh6+
- 2.Sb6#
- 1...Qxd5
- 2.Bxd5#
- 1...d3
- 2.Qc3#
- 2.Qxd3#
- 1...Qe3
- 2.Sc3#
- 2.Sxe3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Sb6
- 2.Se3#
- 2.Sxb6#
- 1...Sc7+!
- threat
- 1.Kb8?
- threat
- 2.Se3#
- 2.Sb6#
- 1...Qxd5
- 2.Bxd5#
- 1...d3
- 2.Qc3#
- 2.Qxd3#
- 1...Qe3
- 2.Sc3#
- 2.Sxe3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Sb6
- 2.Se3#
- 2.Sxb6#
- 1...Qxe5+!
- threat
- 1.Rgxe4?
- threat
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qc3#
- 2.Qd3#
- 1...Rc2
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qd3#
- 1...Rd2
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qc3#
- 1...Rf2
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Qc3#
- 2.Qd3#
- 1...Rh3
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Rh6
- 2.Se3#
- 2.Sb6#
- 2.Sf6#
- 2.Qa2#
- 2.Qc3#
- 2.Qd3#
- 1...Bf5
- 2.Se3#
- 2.Sb6#
- 2.Qc3#
- 2.Qd3#
- 1...Bg6
- 2.Se3#
- 2.Sb6#
- 2.Qc3#
- 2.Qd3#
- 1...Bg8
- 2.Se3#
- 2.Sb6#
- 2.Qc3#
- 2.Qd3#
- 1...Sb6
- 2.Se3#
- 2.Sxb6#
- 2.Qc3#
- 2.Qd3#
- 1...Sc7
- 2.Se3#
- 2.Sb6#
- 2.Sxc7#
- 2.Qc3#
- 2.Qd3#
- 1...Bxe4!
- threat
- 1.Rg6?
- threat
- 2.Rc6#
- 1...Qxg6
- 2.Se3#
- 2.Sb6#
- 1...d3
- 2.Rxe4#
- 2.Qc3#
- 1...Rh6
- 2.Qa2#
- 1...Bxg6!
- threat
- 1.Rexe4?
- threat
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Rxd4#
- 2.Qc3#
- 2.Qd3#
- 1...Rc2
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Rxd4#
- 2.Qd3#
- 1...Rd2
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qc3#
- 1...Rf2
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Rxd4#
- 2.Qc3#
- 2.Qd3#
- 1...Rh3
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Rxd4#
- 1...Rh5
- 2.Se3#
- 2.Sb6#
- 2.Rxd4#
- 2.Qa2#
- 2.Qc3#
- 2.Qd3#
- 1...Rh6
- 2.Se3#
- 2.Sb6#
- 2.Sf6#
- 2.Rxd4#
- 2.Qa2#
- 2.Qc3#
- 2.Qd3#
- 1...Bf5
- 2.Se3#
- 2.Sb6#
- 2.Rxd4#
- 2.Qc3#
- 2.Qd3#
- 1...Bg6
- 2.Se3#
- 2.Sb6#
- 2.Rxd4#
- 2.Qc3#
- 2.Qd3#
- 1...Bg8
- 2.Se3#
- 2.Sb6#
- 2.Rxd4#
- 2.Qc3#
- 2.Qd3#
- 1...Sb6
- 2.Se3#
- 2.Sxb6#
- 2.Rxd4#
- 2.Qc3#
- 2.Qd3#
- 1...Sc7
- 2.Se3#
- 2.Sb6#
- 2.Sxc7#
- 2.Rxd4#
- 2.Qc3#
- 2.Qd3#
- 1...Bxe4!
- threat
- 1.Ka6?
- Keys
- 1.Re6!
- threat
- 2.Rc6#
- 1...Kxd5
- 2.Qb3#
- 1...Qxe6
- 2.Se3#
- 1...d3
- 2.Qxd3#
- 1...Qg6
- 2.Se3#
- 1...Rh6
- 2.Qa2#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- Q(d);P_SPINP(c)::QAR1(B)
- Q(d);CHECK,OGATE,P_SPINP(c),P_SPINQ(d),XS(E)::B(I),XQ(d)
- R(a);N_GUARD::QAB(B)
- R(a);N_GUARD::QAB(B),XR(a)
- Tries
- Try
- K(H);N_SPINS(E),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK,P_SPINP(c)::B(I)+S(E),DCHECK
- R(a);CHECK::B(I)+S(E),DCHECK
- Q(d);OGATE,P_SPINP(c),P_SPINQ(d),XS(E)::B(I),XQ(d)
- Refutation
- S(g);CHECK
- Try
- K(H);N_SPINS(E),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(d);OGATE,P_SPINP(c),P_SPINQ(d),XS(E)::B(I),XQ(d)
- Refutation
- Q(d);CHECK,P_SPINP(c),XR(F)
- Try
- R(D);N_SPINS(E),P_PINP(c),XQ(d)
- Threat
- DUALS(9)
- Refutation
- B(f);N_SPINP(c),P_PINS(E),XR(D)
- Try
- R(D);
- Threat
- R(D)
- Vars
- R(a);N_GUARD::QAB(B)
- Refutation
- B(f);XR(D)
- Try
- R(F);N_SPINS(E),P_PINP(c),XQ(d)
- Threat
- DUALS(10)
- Refutation
- B(f);N_SPINP(c),P_PINS(E),XR(F)
- Try
- Actual
- R(F);
- Threat
- R(F)
- Vars
- K(b);S_FLIGHT,XS(E)::QAB(B)
- Q(d);N_PINS(E),P_SPINP(c),XR(F)::S(E)
- P(c);P_SPINQ(d)::QAB1(B),XP(c)
- Q(d);N_PINS(E),P_SPINP(c)::S(E)
- R(a);N_GUARD::QAB(B)
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