MESON Chess Problem Database
Problem Display
PID: 195019 (2nQ2K1/3p4/4k3/r4N2/4B1P1/3pN3/b2P4/4R3 w - - 0 1)
Hansen, Lorenz
Pittsburgh Gazette-Times, 1918
#2
8 + 6
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Sb6
- 2.Qe7#
- 1...Sd6
- 2.Qe7#
- 1...Sa7
- 2.Qe7#
- 1...Se7+
- 2.Qxe7#
- 1...Sb6
- Tries
- 1.Sc4?
- threat
- 2.Sd4#
- 2.Sg7#
- 1...Se7+
- 2.Qxe7#
- 1...Rxf5
- 2.gxf5#
- 1...Rd5
- 2.Sg7#
- 1...Bxc4!
- threat
- 1.Bh1?
- threat
- 2.Sd5#
- 1...Ke5+
- 2.Sd5#
- 1...Se7+
- 2.Qxe7#
- 1...Rxf5
- 2.Sxf5#
- 1...Ra4
- 2.Sc4#
- 1...Rd5
- 2.Sxd5#
- 1...Bd5
- 2.Sxd5#
- 1...Sd6
- 2.Qe7#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sxd5#
- 1...Re5!
- threat
- 1.Bg2?
- threat
- 2.Sd5#
- 1...Ke5+
- 2.Sd5#
- 1...Se7+
- 2.Qxe7#
- 1...Rxf5
- 2.Sxf5#
- 1...Ra4
- 2.Sc4#
- 1...Rd5
- 2.Sxd5#
- 1...Bd5
- 2.Sxd5#
- 1...Sd6
- 2.Qe7#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sc4#
- 2.Sxd5#
- 1...Re5!
- threat
- 1.Bf3?
- threat
- 2.Sd5#
- 1...Ke5+
- 2.Sd5#
- 1...Se7+
- 2.Qxe7#
- 1...Rxf5
- 2.Sxf5#
- 1...Ra4
- 2.Sc4#
- 1...Rd5
- 2.Sxd5#
- 1...Bd5
- 2.Sxd5#
- 1...Sd6
- 2.Qe7#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sxd5#
- 1...Re5!
- threat
- 1.Bb7?
- threat
- 2.Sd5#
- 1...Ke5+
- 2.Sd5#
- 1...Se7+
- 2.Qxe7#
- 1...Rxf5
- 2.Sxf5#
- 1...Ra4
- 2.Sc4#
- 1...Rd5
- 2.Sxd5#
- 1...Bd5
- 2.Sxd5#
- 1...Sd6
- 2.Qe7#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sxd5#
- 1...Re5!
- threat
- 1.Qe8+?
- 1...Se7+
- 2.Qxe7#
- 1...Kf6+!
- 1...Se7+
- 1.Sc4?
- Keys
- 1.Bc6!
- threat
- 2.Sd5#
- 1...Ke5+
- 2.Sd5#
- 1...Se7+
- 2.Qxe7#
- 1...Rxf5
- 2.Sxf5#
- 1...Re5
- 2.Bxd7#
- 1...Ra4
- 2.Sc4#
- 1...Rd5
- 2.Sxd5#
- 1...Bd5
- 2.Sxd5#
- 1...Sd6
- 2.Qe7#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sxd5#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- S(f);N_GUARD::QAR1(G)
- S(f);CHECK,N_GUARD::QAR1(G),XS(f)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::QAR1(G),XS(f)
- R(c);OGATE,XS(F)::P(E),XR(c)
- R(c);::S(F)
- Refutation
- B(a);XS(C)
- Try
- B(D);
- Threat
- R(A)+S(C)
- Vars
- K(d);CHECK,P-FLIGHT::R(A)+S(C)
- S(f);CHECK,N_GUARD::QAR1(G),XS(f)
- R(c);XS(F)::R(A)+S(C),XR(c)
- R(c);N_GUARD::R(A)+S(C)
- R(c);::R(A)+S(C),XR(c)
- B(a);::R(A)+S(C),XB(a)
- S(f);N_GUARD::QAR1(G)
- Refutation
- R(c);
- Try
- B(D);
- Threat
- R(A)+S(C)
- Vars
- K(d);CHECK,P-FLIGHT::R(A)+S(C)
- S(f);CHECK,N_GUARD::QAR1(G),XS(f)
- R(c);XS(F)::R(A)+S(C),XR(c)
- R(c);N_GUARD::R(A)+S(C)
- R(c);::R(A)+S(C),XR(c)
- B(a);::R(A)+S(C),XB(a)
- S(f);N_GUARD::QAR1(G)
- Refutation
- R(c);
- Try
- B(D);
- Threat
- R(A)+S(C)
- Vars
- K(d);CHECK,P-FLIGHT::R(A)+S(C)
- S(f);CHECK,N_GUARD::QAR1(G),XS(f)
- R(c);XS(F)::R(A)+S(C),XR(c)
- R(c);N_GUARD::R(A)+S(C)
- R(c);::R(A)+S(C),XR(c)
- B(a);::R(A)+S(C),XB(a)
- S(f);N_GUARD::QAR1(G)
- Refutation
- R(c);
- Try
- B(D);
- Threat
- R(A)+S(C)
- Vars
- K(d);CHECK,P-FLIGHT::R(A)+S(C)
- S(f);CHECK,N_GUARD::QAR1(G),XS(f)
- R(c);XS(F)::R(A)+S(C),XR(c)
- R(c);N_GUARD::R(A)+S(C)
- R(c);::R(A)+S(C),XR(c)
- B(a);::R(A)+S(C),XB(a)
- S(f);N_GUARD::QAR1(G)
- Refutation
- R(c);
- Try
- Q(G);CHECK
- Vars
- S(f);CHECK,N_GUARD,P_SPINS(f)::QAR1(G),XS(f)
- Refutation
- K(d);CHECK,P-FLIGHT
- Try
- Actual
- B(D);
- Threat
- R(A)+S(C)
- Vars
- K(d);CHECK,P-FLIGHT::R(A)+S(C)
- S(f);CHECK,N_GUARD::QAR1(G),XS(f)
- R(c);XS(F)::R(A)+S(C),XR(c)
- R(c);SBLOCK::B(D),XP(e)
- R(c);N_GUARD::R(A)+S(C)
- R(c);::R(A)+S(C),XR(c)
- B(a);::R(A)+S(C),XB(a)
- S(f);N_GUARD::QAR1(G)
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