MESON Chess Problem Database
Problem Display
PID: 53968 (4KB2/8/4k3/3p1RpP/2p3N1/7B/bbN2Qn1/4rr2 w - - 0 1)
Tracy, John F
The Chess Review, 1935
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Rf6#
- 1...Bc1
- 2.Sd4#
- 2.Rf6#
- 1...Ba3
- 2.Sd4#
- 2.Rf6#
- 1...Bd4
- 2.Sxd4#
- 1...Bf6
- 2.Rxf6#
- 1...c3
- 2.Sd4#
- 2.Rf6#
- 1...Re5
- Tries
- 1.Rxg5?
- threat
- 2.Sh2#
- 2.Sge3#
- 2.Se5#
- 2.Sf6#
- 2.Sh6#
- 2.Qb6#
- 1...Re3
- 2.Sgxe3#
- 1...Re4
- 2.Qb6#
- 1...Re5
- 2.Sxe5#
- 2.Rg6#
- 2.Qb6#
- 1...Rh1
- 2.Sh2#
- 2.Qb6#
- 2.Qf5#
- 2.Qf7#
- 1...Ba3
- 2.Sd4#
- 2.Sh2#
- 2.Sge3#
- 2.Se5#
- 2.Sf6#
- 2.Sh6#
- 2.Rg6#
- 1...Bd4
- 2.Sxd4#
- 2.Sh2#
- 2.Sge3#
- 2.Se5#
- 2.Sf6#
- 2.Sh6#
- 1...Be5
- 2.Sh2#
- 2.Sge3#
- 2.Sxe5#
- 2.Sf6#
- 2.Sh6#
- 1...Bf6
- 2.Sh2#
- 2.Sge3#
- 2.Se5#
- 2.Sxf6#
- 2.Sh6#
- 2.Qb6#
- 1...Se3
- 2.Sgxe3#
- 1...Sf4
- 2.Qb6#
- 1...Sh4
- 2.Qb6#
- 1...d4
- 2.Sh2#
- 2.Sge3#
- 2.Sf6#
- 2.Sh6#
- 1...Rxf2!
- threat
- 1.Qc5?
- threat
- 2.Qxd5#
- 2.Qc8#
- 1...Rxf5
- 2.Qb6#
- 2.Qd6#
- 2.Qe7#
- 2.Qc6#
- 2.Qc8#
- 1...Rd1
- 2.Qc8#
- 1...Re5
- 2.Qc8#
- 1...Be5
- 2.Qc8#
- 1...Se3
- 2.Qc8#
- 1...Sf4
- 2.Qc8#
- 1...c3
- 2.Sd4#
- 2.Qc8#
- 1...d4
- 2.Qd5#
- 2.Qc8#
- 1...Kxf5+!
- threat
- 1.Qa7?
- threat
- 2.Qd7#
- 2.Qf7#
- 1...Rxf5
- 2.Qb6#
- 2.Qa6#
- 2.Qd7#
- 2.Qe7#
- 1...Bf6
- 2.Qd7#
- 1...Kxf5+!
- threat
- 1.Rxg5?
- Keys
- 1.Qd4!
- threat
- 2.Qxd5#
- 1...Kxf5+
- 2.Sge3#
- 1...Rxf5
- 2.Qb6#
- 1...Bxd4
- 2.Sxd4#
- 1...Rd1
- 2.Re5#
- 1...Re5
- 2.Rxe5#
- 1...Se3
- 2.Re5#
- 1...Sf4
- 2.Rf6#
- 1...c3
- 2.Qf6#
- threat
- 1.Qd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- R(a);S_CUTB(d)::R1(E)
- B(d);N_GUARD::S(A),XB(d)
- B(d);N_GUARD::R1(E),XB(d)
- Tries
- Try
- R(E);XP(h)
- Threat
- DUALS(6)
- Vars
- R(a);::B(C)+S(D),XR(a)
- R(a);::QAR(B)
- S(e);::B(C)+S(D),XS(e)
- S(e);::QAR(B)
- Refutation
- R(b);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(a);::QAB(B)
- B(d);::QAB(B)
- S(e);::QAB(B)
- Refutation
- K(i);CHECK,P_SPINP(g),S_FLIGHT,XR(E)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(d);::QAB1(B)
- Refutation
- K(i);CHECK,S_FLIGHT,XR(E)
- Try
- Actual
- Q(B);
- Threat
- QAB1(B),XP(g)
- Vars
- K(i);CHECK,S_FLIGHT,XR(E)::B(C)+S(D),DCHECK
- R(b);SBLOCK,XR(E)::QAR(B)
- B(d);XQ(B)::S(A),XB(d)
- R(a);N_GUARD::R1(E)
- R(a);N_GUARD::R1(E),XR(a)
- S(e);S_CUTR(a)::R1(E)
- S(e);S_CUTR(b)::R1(E)
- P(f);S_CUTB(d)::QAR1(B)
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