MESON Chess Problem Database
Problem Display
PID: 55883 (2R3B1/p1N5/3Kp2r/2N5/b1kn3R/p2p4/P1nr4/BQ6 w - - 0 1)
Mansfield, Comins
Comm., Die Schwalbe, 1978/II
#2
9 + 10
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Rh7
- 2.Bxe6#
- 1...Rh8
- 2.Bxe6#
- 1...Bb3
- 2.Qxb3#
- 1...Bb5
- 2.Qb3#
- 2.Qxb5#
- 1...Bc6
- 2.Qb3#
- 1...Bd7
- 2.Qb3#
- 1...Be8
- 2.Qb3#
- 1...Se1
- 2.Rxd4#
- 1...Se3
- 2.Rxd4#
- 1...Sb4
- 2.Rxd4#
- 1...Rh7
- Tries
- 1.Sxa4?
- threat
- 2.Sb5#
- 2.Sd5#
- 2.Sa6#
- 2.Sxe6#
- 2.Sa8#
- 2.Se8#
- 2.Qb3#
- 2.Qb5#
- 1...Sxa1
- 2.Sb5#
- 2.Sd5#
- 2.Sa6#
- 2.Sxe6#
- 2.Sa8#
- 2.Se8#
- 2.Qb5#
- 1...Rh5
- 2.Sd5#
- 2.Qb3#
- 1...Rh7
- 2.Bxe6#
- 2.Qb3#
- 2.Qb5#
- 1...Sb4
- 2.Rxd4#
- 2.Qb3#
- 1...a6
- 2.Sb6#
- 2.Sb5#
- 2.Sd5#
- 2.Sxa6#
- 2.Sxe6#
- 2.Sa8#
- 2.Se8#
- 2.Qb3#
- 1...Rxh4!
- threat
- 1.Sb7?
- threat
- 2.Sa5#
- 2.Sb5#
- 1...Rxh4
- 2.Sa5#
- 1...Sxa1
- 2.Sb5#
- 1...Bb3
- 2.Qxb3#
- 1...Rh7
- 2.Sa5#
- 2.Bxe6#
- 1...Bb5
- 2.Sa5#
- 2.Sxb5#
- 2.Qb3#
- 2.Qxb5#
- 1...Bc6
- 2.Sa5#
- 2.Qb3#
- 1...Bd7
- 2.Sa5#
- 2.Qb3#
- 1...Be8
- 2.Sa5#
- 2.Sxe8#
- 2.Qb3#
- 1...Sb4
- 2.Sa5#
- 2.Rxd4#
- 1...a5
- 2.Sxa5#
- 2.Sb5#
- 1...Rh5!
- threat
- 1.Sd7?
- threat
- 2.Sb5#
- 2.Se5#
- 1...Rxh4
- 2.Se5#
- 1...Bxd7
- 2.Qb3#
- 1...Sxa1
- 2.Sb5#
- 1...Bb3
- 2.Qxb3#
- 1...Re2
- 2.Sb5#
- 1...Bb5
- 2.Sxb5#
- 2.Se5#
- 2.Qb3#
- 2.Qxb5#
- 1...Bc6
- 2.Se5#
- 2.Qb3#
- 1...Sb4
- 2.Se5#
- 2.Rxd4#
- 1...Rh5!
- threat
- 1.S7xe6?
- threat
- 2.Sxa4#
- 1...Rxe6+
- 2.Bxe6#
- 1...Rxh4
- 2.Sxd4#
- 1...Bb3
- 2.Qxb3#
- 1...Rh5
- 2.Sg5#
- 1...Rh7
- 2.Sg7#
- 1...Bb5
- 2.Qb3#
- 1...Bc6
- 2.Qb3#
- 1...Bd7
- 2.Sxd7#
- 2.Qb3#
- 1...Be8
- 2.Sd7#
- 2.Qb3#
- 1...Sb4!
- threat
- 1.Qxc2+?
- 1...Kb4
- 2.Qxa4#
- 2.Qc3#
- 1...Rxc2
- 2.Rxd4#
- 1...Bxc2
- 2.Rxd4#
- 1...dxc2!
- 1...Kb4
- 1.Qb2?
- threat
- 2.Qc3#
- 1...Sxa1
- 2.Rxd4#
- 2.Qxd4#
- 1...axb2!
- threat
- 1.Qb4+?
- 1...Sxb4
- 2.Rxd4#
- 1...Kxb4!
- 1...Sxb4
- 1.Sxa4?
- Keys
- 1.S5xe6!
- threat
- 2.Sb5#
- 1...Rxe6+
- 2.Bxe6#
- 1...Rxh4
- 2.Sxd4#
- 1...Bb3
- 2.Qxb3#
- 1...Rh5
- 2.Sg5#
- 1...Rh7
- 2.Sg7#
- 1...Bb5
- 2.Sxb5#
- 2.Qb3#
- 2.Qxb5#
- 1...Bc6
- 2.Qb3#
- 1...Bd7
- 2.Qb3#
- 1...Be8
- 2.Sxe8#
- 2.Qb3#
- 1...Sb4
- 2.Rxd4#
- threat
- 1.S5xe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(i);N_GUARD::B(I),XP(h)
- B(e);N_GUARD::QAB1(B),XB(e)
- B(e);N_GUARD::QAB1(B)
- S(a);N_GUARD::R1(D),XS(g)
- Tries
- Try
- S(E);XB(e)
- Threat
- DUALS(8)
- Refutation
- R(i);N_SPINS(g),XR(D)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(i);N_SPINS(g),XR(D)::S(E)
- S(a);XB(A)::R(H)+S(G)
- B(e);N_GUARD::QAB1(B),XB(e)
- Refutation
- R(i);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(i);N_SPINS(g),XR(D)::S(E)
- B(e);N_GUARD,XS(E)::QAB1(B)
- S(a);XB(A)::R(H)+S(G)
- B(e);N_GUARD::QAB1(B),XB(e)
- R(b);::R(H)+S(G)
- Refutation
- R(i);
- Try
- S(G);P_SPINS(G),XP(h)
- Threat
- R(H)+S(E),XB(e)
- Vars
- R(i);CHECK,OGATE,P_SPINR(i),XS(G)::B(I),XR(i)
- R(i);N_PINS(G),N_SPINS(g),XR(D)::B(I)+S(G),XS(g)
- B(e);N_GUARD::QAB1(B),XB(e)
- R(i);N_PINS(G)::B(I)+S(G)
- B(e);N_GUARD::QAB1(B)
- Refutation
- S(a);
- Try
- Q(B);CHECK,XS(a)
- Vars
- R(b);XQ(B)::R1(D),XS(g)
- B(e);XQ(B)::R1(D),XS(g)
- Refutation
- P(d);XQ(B)
- Try
- Q(B);
- Threat
- QAR1(B)
- Refutation
- P(c);XQ(B)
- Try
- Q(B);CHECK
- Vars
- S(a);SBLOCK,XQ(B)::R1(D),XS(g)
- Refutation
- K(f);N_SPINP(h),P-FLIGHT,XQ(B)
- Try
- Actual
- S(E);P_SPINS(E),XP(h)
- Threat
- R(H)+S(G)
- Vars
- R(i);CHECK,OGATE,P_SPINR(i),XS(E)::B(I),XR(i)
- R(i);N_PINS(E),N_SPINS(g),XR(D)::B(I)+S(E),XS(g)
- B(e);N_GUARD::QAB1(B),XB(e)
- R(i);N_PINS(E)::B(I)+S(E)
- B(e);N_GUARD::QAB1(B)
- S(a);N_GUARD::R1(D),XS(g)
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