MESON Chess Problem Database
Problem Display
PID: 248436 (1b5K/5N1p/2p2Qp1/2Bp4/BPkr1nR1/P4R1r/1qPp4/1N6 w - - 0 1)
Page, George
British Chess Magazine, 1932
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Qxd4#
- 1...Qxa3
- 2.Sxa3#
- 2.Qxd4#
- 1...Qxb1
- 2.Qxd4#
- 1...Qa2
- 2.Qxd4#
- 1...Qxc2
- 2.Qxd4#
- 1...Qb3
- 2.Qxd4#
- 2.cxb3#
- 1...Qxb4
- 2.Qxd4#
- 1...Rd3
- 2.cxd3#
- 1...Re4
- 2.Sxd2#
- 1...Be5
- 2.Sxe5#
- 1...Bd6
- 2.Sxd6#
- 1...Ba7
- 2.Se5#
- 2.Sd6#
- 1...Se2
- 2.Sxd2#
- 1...Sg2
- 2.Sxd2#
- 1...Sd3
- 2.cxd3#
- 1...Sh5
- 2.Sxd2#
- 1...Se6
- 2.Sxd2#
- 1...Qc1
- Tries
- 1.Bb6?
- threat
- 2.Qxc6#
- 1...Qxa3
- 2.Qxd4#
- 1...Qxb4
- 2.Qxd4#
- 1...Rd3
- 2.cxd3#
- 1...Re4
- 2.Sxd2#
- 1...Be5
- 2.Sxe5#
- 1...Bd6
- 2.Sxd6#
- 1...Sd3
- 2.cxd3#
- 1...Se6
- 2.Sxd2#
- 1...c5!
- threat
- 1.Bd6?
- threat
- 2.Se5#
- 1...Bxd6
- 2.Sxd6#
- 1...Rd3
- 2.cxd3#
- 1...Re4
- 2.Sxd2#
- 1...Sd3
- 2.cxd3#
- 1...Rh5!
- threat
- 1.Be7?
- threat
- 2.Qxc6#
- 1...Rd3
- 2.cxd3#
- 1...Re4
- 2.Sxd2#
- 1...Be5
- 2.Sxe5#
- 1...Bd6
- 2.Sxd6#
- 1...Ba7
- 2.Se5#
- 2.Sd6#
- 1...Sd3
- 2.cxd3#
- 1...Se6
- 2.Sxd2#
- 1...c5
- 2.Qa6#
- 1...Qxb4!
- threat
- 1.Bf8?
- threat
- 2.Qxc6#
- 1...Rd3
- 2.cxd3#
- 1...Re4
- 2.Sxd2#
- 1...Be5
- 2.Sxe5#
- 1...Bd6
- 2.Sxd6#
- 1...Ba7
- 2.Se5#
- 2.Sd6#
- 1...Sd3
- 2.cxd3#
- 1...Se6
- 2.Sxd2#
- 1...c5
- 2.Qa6#
- 1...Qxb4!
- threat
- 1.Rc3+?
- 1...Rxc3
- 2.Qxd4#
- 1...Qxc3!
- 1...Rxc3
- 1.Bb6?
- Keys
- 1.Ba7!
- threat
- 2.Qxc6#
- 1...Qxa3
- 2.Qxd4#
- 1...Qxb4
- 2.Qxd4#
- 1...Bxa7
- 2.Se5#
- 2.Sd6#
- 1...Rd3
- 2.cxd3#
- 1...Re4
- 2.Sxd2#
- 1...Be5
- 2.Sxe5#
- 1...Bd6
- 2.Sxd6#
- 1...Sd3
- 2.cxd3#
- 1...Se6
- 2.Sxd2#
- 1...c5
- 2.Qa6#
- threat
- 1.Ba7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD::QAR1(I),XR(e)
- Q(a);N_GUARD,XS(A)::QAR1(I),XR(e)
- Q(a);N_GUARD,XP(B)::QAR1(I),XR(e)
- Q(a);N_GUARD,XP(F)::QAR1(I),XR(e)
- R(e);OGATE,P_PINQ(I),P_SPINS(f)::P(B),XR(e)
- R(e);N_GUARD,P_PINQ(I)::S(A),XP(b)
- B(k);N_GUARD,P_PINQ(I)::S(J),XB(k)
- B(k);N_GUARD::S(J),XB(k)
- S(f);P_SPINR(e)::S(A),XP(b)
- S(f);OGATE,P_SPINR(e)::P(B),XS(f)
- Tries
- Try
- B(H);
- Threat
- QAR2(I),XP(h)
- Vars
- Q(a);N_GUARD,XP(C)::QAR1(I),XR(e)
- Q(a);N_GUARD,XP(F)::QAR1(I),XR(e)
- R(e);OGATE,P_PINQ(I),P_SPINS(f)::P(B),XR(e)
- R(e);N_GUARD,P_PINQ(I)::S(A),XP(b)
- B(k);N_GUARD,P_PINQ(I)::S(J),XB(k)
- B(k);N_GUARD::S(J),XB(k)
- S(f);OGATE,P_SPINR(e)::P(B),XS(f)
- S(f);P_SPINR(e)::S(A),XP(b)
- Refutation
- P(h);
- Try
- B(H);
- Threat
- S(J)
- Vars
- B(k);XB(H)::S(J),XB(k)
- R(e);OGATE,P_PINQ(I),P_SPINS(f)::P(B),XR(e)
- R(e);N_GUARD,P_PINQ(I)::S(A),XP(b)
- S(f);OGATE,P_SPINR(e)::P(B),XS(f)
- Refutation
- R(c);
- Try
- B(H);
- Threat
- QAR2(I),XP(h)
- Vars
- R(e);OGATE,P_PINQ(I),P_SPINS(f)::P(B),XR(e)
- R(e);N_GUARD,P_PINQ(I)::S(A),XP(b)
- B(k);N_GUARD,P_PINQ(I)::S(J),XB(k)
- B(k);N_GUARD::S(J),XB(k)
- S(f);OGATE,P_SPINR(e)::P(B),XS(f)
- S(f);P_SPINR(e)::S(A),XP(b)
- P(h);OGATE::QAB(I)
- Refutation
- Q(a);XP(F)
- Try
- B(H);
- Threat
- QAR2(I),XP(h)
- Vars
- R(e);OGATE,P_PINQ(I),P_SPINS(f)::P(B),XR(e)
- R(e);N_GUARD,P_PINQ(I)::S(A),XP(b)
- B(k);N_GUARD,P_PINQ(I)::S(J),XB(k)
- B(k);N_GUARD::S(J),XB(k)
- S(f);OGATE,P_SPINR(e)::P(B),XS(f)
- S(f);P_SPINR(e)::S(A),XP(b)
- P(h);OGATE::QAB(I)
- Refutation
- Q(a);XP(F)
- Try
- R(D);CHECK
- Vars
- R(c);XR(D)::QAR1(I),XR(e)
- Refutation
- Q(a);XR(D)
- Try
- Actual
- B(H);
- Threat
- QAR2(I),XP(h)
- Vars
- Q(a);N_GUARD,XP(C)::QAR1(I),XR(e)
- Q(a);N_GUARD,XP(F)::QAR1(I),XR(e)
- R(e);OGATE,P_PINQ(I),P_SPINS(f)::P(B),XR(e)
- R(e);N_GUARD,P_PINQ(I)::S(A),XP(b)
- B(k);N_GUARD,P_PINQ(I)::S(J),XB(k)
- B(k);N_GUARD::S(J),XB(k)
- S(f);OGATE,P_SPINR(e)::P(B),XS(f)
- S(f);P_SPINR(e)::S(A),XP(b)
- P(h);OGATE::QAB(I)
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