MESON Chess Problem Database
Problem Display
PID: 67514 (3Bn1b1/8/PNkbrRnq/Pp1R1p2/1p1P4/1K1N4/8/3BQ3 w - - 0 1)
Sedgwick, Stanley
Chess, 1948
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxe1
- 2.Sxb4#
- 1...Re2
- 2.Sxb4#
- 1...Re4
- 2.Sxb4#
- 1...Re5
- 2.Sxb4#
- 1...Rxf6
- 2.Qxe8#
- 1...Re7
- 2.Sxb4#
- 1...Bh2
- 2.Sxb4#
- 1...Bg3
- 2.Sxb4#
- 1...Bf4
- 2.Sxb4#
- 1...Be5
- 2.Sxb4#
- 1...Bc7
- 2.Sxb4#
- 1...Bb8
- 2.Sxb4#
- 1...Rxe1
- Tries
- 1.Rxe6?
- threat
- 2.Sxb4#
- 2.Rc5#
- 1...Qc1
- 2.Sxb4#
- 1...Qd2
- 2.Rc5#
- 1...Qe3
- 2.Rc5#
- 1...Qh3
- 2.Rc5#
- 1...Bxe6!
- threat
- 1.Qc3+?
- 1...Bc5
- 2.Sxb4#
- 2.Qxc5#
- 1...bxc3!
- 1...Bc5
- 1.Qxb4?
- threat
- 2.Qxb5#
- 1...Bxb4
- 2.Sxb4#
- 1...Bc5
- 2.Qxc5#
- 1...Sc7!
- threat
- 1.Qxe6?
- threat
- 2.Sxb4#
- 2.Rc5#
- 2.Qd7#
- 2.Qxe8#
- 1...Sxf6
- 2.Sxb4#
- 2.Rc5#
- 2.Rxd6#
- 2.Qxd6#
- 1...Qc1
- 2.Sxb4#
- 2.Qd7#
- 2.Qxe8#
- 1...Qd2
- 2.Rc5#
- 2.Qd7#
- 2.Qxe8#
- 1...Qe3
- 2.Rc5#
- 2.Qd7#
- 1...Qg7
- 2.Sxb4#
- 2.Rc5#
- 1...Qf8
- 2.Sxb4#
- 2.Rc5#
- 2.Qd7#
- 1...Qh3
- 2.Rc5#
- 2.Qd7#
- 2.Qxe8#
- 1...Qh7
- 2.Sxb4#
- 2.Rc5#
- 1...Bf7
- 2.Sxb4#
- 2.Rc5#
- 2.Qd7#
- 1...Se5
- 2.Sxb4#
- 2.Sxe5#
- 2.Rc5#
- 1...Se7
- 2.Sxb4#
- 2.Se5#
- 2.Rc5#
- 2.Qd7#
- 1...Sf8
- 2.Sxb4#
- 2.Se5#
- 2.Rc5#
- 1...Sc7
- 2.Sxb4#
- 2.Rc5#
- 2.Rxd6#
- 2.Qd7#
- 2.Qxd6#
- 1...Sg7
- 2.Sxb4#
- 2.Rc5#
- 2.Rxd6#
- 2.Qd7#
- 2.Qc8#
- 2.Qxd6#
- 1...Bxe6!
- threat
- 1.Rxe6?
- Keys
- 1.Bf3!
- threat
- 2.Rc5#
- 2.Re5#
- 1...Rxe1
- 2.Sxb4#
- 1...Rxf6
- 2.Qxe8#
- 1...Sxf6
- 2.Rc5#
- 1...Qe3
- 2.Rc5#
- 1...Qf4
- 2.Rc5#
- 1...Qh1
- 2.Rc5#
- 1...Qh3
- 2.Rc5#
- 1...Qh4
- 2.Rc5#
- 1...Qh5
- 2.Rc5#
- 1...Re2
- 2.Sxb4#
- 1...Re3
- 2.Qc1#
- 1...Re4
- 2.Sxb4#
- 1...Re5
- 2.Sxb4#
- 1...Re7
- 2.Sxb4#
- 1...Bh2
- 2.Sxb4#
- 2.Rd7#
- 1...Bg3
- 2.Sxb4#
- 2.Rd7#
- 1...Bf4
- 2.Sxb4#
- 2.Rd7#
- 1...Bc5
- 2.Rd7#
- 1...Be5
- 2.Sxb4#
- 2.Rd7#
- 1...Bc7
- 2.Sxb4#
- 2.Rd7#
- 1...Be7
- 2.Rd7#
- 1...Bb8
- 2.Sxb4#
- 2.Rd7#
- 1...Bf8
- 2.Rd7#
- 1...Sf4
- 2.Rc5#
- 1...Sh4
- 2.Rc5#
- 1...Se5
- 2.Rc5#
- 2.Rxe5#
- 1...Se7
- 2.Rc5#
- 1...Sc7
- 2.Rc5#
- threat
- 1.Bf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 15
- REMOVED MATES = 6
- Sets
- R(f);P_PINR(G),P_SPINB(e),XQ(B)::S(D),XP(a)
- R(f);P_PINR(G),P_SPINB(e)::S(D),XP(a)
- R(f);OGATE,P_PINR(G),XR(J)::QAB(B),XS(i)
- B(e);N_GUARD,P_SPINR(f)::S(D),XP(a)
- Tries
- Try
- R(J);P_PINB(e),XR(f)
- Threat
- DUALS(2)
- Vars
- Q(h);::S(D),XP(a)
- Q(h);::R1(G)
- Q(h);P_PINS(D)::R1(G)
- Refutation
- B(j);N_SPINB(e),P_PINR(G),XR(J)
- Try
- Q(B);CHECK
- Refutation
- P(a);XQ(B)
- Try
- Q(B);XP(a)
- Threat
- QAB1(B),XP(b)
- Vars
- B(e);P_SPINR(f),XQ(B)::S(D),XB(e)
- B(e);N_GUARD,P_SPINR(f)::QAR1(B),XB(e)
- Refutation
- S(i);
- Try
- Q(B);P_PINB(e),XR(f)
- Threat
- DUALS(4)
- Refutation
- B(j);N_SPINB(e),P_PINR(G),XQ(B)
- Try
- Actual
- B(A);
- Threat
- DUALS(2)
- Vars
- R(f);P_PINR(G),P_SPINB(e),XQ(B)::S(D),XP(a)
- R(f);OGATE,P_PINR(G),XR(J)::QAB(B),XS(i)
- S(i);XR(J)::B(A)+R(G),DCHECK
- Q(h);P_PINS(D)::B(A)+R(G),DCHECK
- Q(h);::B(A)+R(G),DCHECK
- R(f);P_PINR(G),P_SPINB(e)::S(D),XP(a)
- R(f);P_PINR(G),P_PINS(D),P_SPINB(e),S_CUTQ(h)::QAR(B)
- B(e);OGATE,P_SPINR(f)::B(A)+R(G)
- S(g);::B(A)+R(G),DCHECK
- S(i);::B(A)+R(G),DCHECK
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