MESON Chess Problem Database
Problem Display
PID: 17479 (8/2p5/p1P5/R3p3/Q1b1n2K/n1BkPB2/R2p1P2/3N4 w - - 0 1)
Clark, Cecil Henry Douglas
Recomm., BCF 057. Ty., 1947-1948
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxa2
- 2.Qxe4#
- 1...Bb3
- 2.Qxe4#
- 1...Bb5
- 2.Qxe4#
- 1...Bd5
- 2.Rxd5#
- 1...Be6
- 2.Qxe4#
- 1...Bf7
- 2.Qxe4#
- 1...Bg8
- 2.Qxe4#
- 1...Sb1
- 2.Qc2#
- 1...Sc2
- 2.Qxc2#
- 1...Sb5
- 2.Qc2#
- 1...Sxf2
- 2.Rxd2#
- 1...Sxc3
- 2.Sb2#
- 1...Sg3
- 2.Rxd2#
- 1...Sc5
- 2.Rxd2#
- 1...Sg5
- 2.Rxd2#
- 1...Sd6
- 2.Rxd2#
- 1...Sf6
- 2.Rxd2#
- 1...Bxa2
- Tries
- 1.Bb4?
- threat
- 2.Sb2#
- 1...Sxf2
- 2.Rxd2#
- 1...Bb3!
- threat
- 1.Bxe5?
- threat
- 2.Sb2#
- 1...Bb3
- 2.Qd4#
- 2.Qxe4#
- 1...Sxf2!
- threat
- 1.Rb2?
- 1...Sxf2
- 2.Rxd2#
- 1...Sb1
- 2.Qc2#
- 1...Ba2
- 2.Qxe4#
- 1...Bb3
- 2.Qxe4#
- 1...Bb5
- 2.Qxe4#
- 1...Bd5
- 2.Rxd5#
- 1...Be6
- 2.Qxe4#
- 1...Bf7
- 2.Qxe4#
- 1...Bg8
- 2.Qxe4#
- 1...Sc2
- 2.Qxc2#
- 1...Sb5
- 2.Qc2#
- 1...Sg3
- 2.Rxd2#
- 1...Sc5
- 2.Rxd2#
- 1...Sg5
- 2.Rxd2#
- 1...Sd6
- 2.Rxd2#
- 1...Sf6
- 2.Rxd2#
- 1...Sxc3!
- 1...Sxf2
- 1.Rc2?
- threat
- 2.Sb2#
- 1...Sxf2
- 2.Rxd2#
- 1...Bb3
- 2.Qxe4#
- 1...Sxc2!
- threat
- 1.Rxa3?
- threat
- 2.Sb2#
- 1...Bb3
- 2.Qxe4#
- 1...Sxf2!
- threat
- 1.Rc5?
- 1...Bxa2
- 2.Sb2#
- 2.Qxe4#
- 1...Sxf2
- 2.Rxd2#
- 1...Sxc3
- 2.Sb2#
- 1...Sxc5
- 2.Rxd2#
- 1...Sb1
- 2.Qc2#
- 2.Qxc4#
- 1...Bb3
- 2.Qxe4#
- 1...Bb5
- 2.Sb2#
- 2.Rd5#
- 2.Qxe4#
- 1...Bd5
- 2.Sb2#
- 2.Rxd5#
- 1...Be6
- 2.Sb2#
- 2.Qxe4#
- 1...Bf7
- 2.Sb2#
- 2.Qxe4#
- 1...Bg8
- 2.Sb2#
- 2.Qxe4#
- 1...Sc2
- 2.Qxc2#
- 2.Qxc4#
- 1...Sb5
- 2.Qc2#
- 2.Qxc4#
- 1...Sg3
- 2.Rxd2#
- 1...Sg5
- 2.Rxd2#
- 1...Sd6
- 2.Rxd2#
- 1...Sf6
- 2.Rxd2#
- 1...a5!
- 1...Bxa2
- 1.Rxe5?
- 1...Bxa2
- 2.Qxe4#
- 1...Sxf2
- 2.Rxd2#
- 1...Sxc3
- 2.Sb2#
- 1...Sb1
- 2.Qc2#
- 1...Bb3
- 2.Qd4#
- 2.Qxe4#
- 1...Bb5
- 2.Rd5#
- 2.Qd4#
- 2.Qxe4#
- 1...Bd5
- 2.Rxd5#
- 2.Qd4#
- 1...Be6
- 2.Qd4#
- 2.Qxe4#
- 1...Bf7
- 2.Qd4#
- 2.Qxe4#
- 1...Bg8
- 2.Qd4#
- 2.Qxe4#
- 1...Sc2
- 2.Qxc2#
- 1...Sb5
- 2.Qc2#
- 1...Sg3
- 2.Rxd2#
- 1...Sc5
- 2.Rxd2#
- 1...Sg5
- 2.Rxd2#
- 1...Sd6
- 2.Rxd2#
- 1...Sf6
- 2.Rxd2#
- 1...a5!
- 1...Bxa2
- 1.Rxa6?
- 1...Bxa2
- 2.Qxe4#
- 1...Bxa6
- 2.Qxe4#
- 1...Sxf2
- 2.Rxd2#
- 1...Sxc3
- 2.Sb2#
- 1...Bb3
- 2.Qxe4#
- 1...Bb5
- 2.Qxe4#
- 1...Be6
- 2.Qxe4#
- 1...Bf7
- 2.Qxe4#
- 1...Bg8
- 2.Qxe4#
- 1...Sb1
- 2.Qc2#
- 1...Sc2
- 2.Qxc2#
- 1...Sb5
- 2.Qc2#
- 1...Sg3
- 2.Rxd2#
- 1...Sc5
- 2.Rxd2#
- 1...Sg5
- 2.Rxd2#
- 1...Sd6
- 2.Rxd2#
- 1...Sf6
- 2.Rxd2#
- 1...Bd5!
- 1...Bxa2
- 1.Qb3?
- threat
- 2.Sb2#
- 1...Sxf2
- 2.Rxd2#
- 1...Bxb3!
- threat
- 1.Qxc4+?
- 1...Sxc4
- 2.Rd5#
- 1...Kxc4!
- 1...Sxc4
- 1.Bb4?
- Keys
- 1.Qb4!
- 1...Bxa2
- 2.Qxe4#
- 1...Sxf2
- 2.Rxd2#
- 1...Sxc3
- 2.Qxc3#
- 1...Bb3
- 2.Qxe4#
- 1...Bb5
- 2.Qxe4#
- 1...Bd5
- 2.Rxd5#
- 1...Be6
- 2.Qxe4#
- 1...Bf7
- 2.Qxe4#
- 1...Bg8
- 2.Qxe4#
- 1...Sb1
- 2.Qxb1#
- 1...Sc2
- 2.Sb2#
- 1...Sb5
- 2.Qb1#
- 1...Sg3
- 2.Rxd2#
- 1...Sc5
- 2.Rxd2#
- 1...Sg5
- 2.Rxd2#
- 1...Sd6
- 2.Rxd2#
- 1...Sf6
- 2.Rxd2#
- 1...Bxa2
- 1.Qb4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(d);OGATE,XR(B)::QAB1(G),XS(e)
- B(d);OGATE::QAB1(G),XS(e)
- B(d);N_GUARD::R(I),XB(d)
- S(b);N_GUARD::QAB1(G)
- S(b);N_GUARD::QAB1(G),XS(b)
- S(e);N_GUARD,XP(C)::R1(B),XP(a)
- S(e);SBLOCK,XB(D)::S(A)
- S(e);N_GUARD::R1(B),XP(a)
- Tries
- Try
- B(D);
- Threat
- S(A)
- Vars
- S(e);N_GUARD,XP(C)::R1(B),XP(a)
- Refutation
- B(d);
- Try
- B(D);XP(f)
- Threat
- S(A)
- Refutation
- S(e);XP(C)
- Try
- R(B);
- Vars
- S(e);N_GUARD,XP(C)::R1(B),XP(a)
- S(b);N_GUARD::QAB1(G)
- B(d);OGATE::QAB1(G),XS(e)
- B(d);N_GUARD::R(I),XB(d)
- S(b);N_GUARD::QAB1(G),XS(b)
- S(e);N_GUARD::R1(B),XP(a)
- Refutation
- S(e);XB(D)
- Try
- R(B);
- Threat
- S(A)
- Vars
- S(e);N_GUARD,XP(C)::R1(B),XP(a)
- B(d);OGATE::QAB1(G),XS(e)
- Refutation
- S(b);XR(B)
- Try
- R(B);XS(b)
- Threat
- S(A)
- Vars
- B(d);OGATE::QAB1(G),XS(e)
- Refutation
- S(e);XP(C)
- Try
- R(I);
- Vars
- S(e);N_GUARD,XP(C)::R1(B),XP(a)
- S(e);SBLOCK,XB(D)::S(A)
- S(e);N_GUARD,XR(I)::R1(B),XP(a)
- B(d);OGATE::QAB1(G),XS(e)
- S(e);N_GUARD::R1(B),XP(a)
- Refutation
- P(g);
- Try
- R(I);XP(f)
- Vars
- B(d);OGATE,XR(B)::QAB1(G),XS(e)
- S(e);N_GUARD,XP(C)::R1(B),XP(a)
- S(e);SBLOCK,XB(D)::S(A)
- S(b);N_GUARD::QAB1(G)
- S(b);N_GUARD::QAB1(G),XS(b)
- S(e);N_GUARD::R1(B),XP(a)
- Refutation
- P(g);
- Try
- R(I);XP(g)
- Vars
- B(d);OGATE,XR(B)::QAB1(G),XS(e)
- B(d);OGATE,XR(I)::QAB1(G),XS(e)
- S(e);N_GUARD,XP(C)::R1(B),XP(a)
- S(e);SBLOCK,XB(D)::S(A)
- B(d);OGATE::QAB1(G),XS(e)
- S(b);N_GUARD::QAB1(G)
- S(b);N_GUARD::QAB1(G),XS(b)
- S(e);N_GUARD::R1(B),XP(a)
- Refutation
- B(d);
- Try
- Q(G);
- Threat
- S(A)
- Vars
- S(e);N_GUARD,XP(C)::R1(B),XP(a)
- Refutation
- B(d);XQ(G)
- Try
- Q(G);CHECK,XB(d)
- Vars
- S(b);SBLOCK,XQ(G)::R(I)
- Refutation
- K(c);S_FLIGHT,XQ(G)
- Try
- Actual
- Q(G);
- Vars
- B(d);OGATE,XR(B)::QAB1(G),XS(e)
- S(e);N_GUARD,XP(C)::R1(B),XP(a)
- S(e);OGATE,XB(D)::QAR1(G),XS(e)
- B(d);OGATE::QAB1(G),XS(e)
- B(d);N_GUARD::R(I),XB(d)
- S(b);N_GUARD::QAB(G),XS(b)
- S(b);SBLOCK::S(A)
- S(b);N_GUARD::QAB(G)
- S(e);N_GUARD::R1(B),XP(a)
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