MESON Chess Problem Database
Problem Display
PID: 206418 (Q1b5/bn1p2p1/3BkPB1/1KP1PR2/3R4/3P3n/4N3/8 w - - 0 1)
van Dijk, Johannes
Dutch East Indies Chess Association, 1925
#2
11 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxc5
- 2.Qa2#
- 1...Bb6
- 2.Qa2#
- 1...Bb8
- 2.Qa2#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Sa5
- 2.Qd5#
- 1...Sxc5
- 2.Qd5#
- 1...Sxd6+
- 2.Rxd6#
- 1...Sd8
- 2.Qd5#
- 1...gxf6
- 2.Rxf6#
- 1...Bxc5
- Tries
- 1.Kb4?
- 1...Sxc5
- 2.Qd5#
- 1...Sxd6
- 2.Rxd6#
- 2.Qd5#
- 1...gxf6
- 2.Rxf6#
- 1...Bb6
- 2.Qa2#
- 1...Bb8
- 2.Qa2#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Sa5
- 2.Qd5#
- 1...Sd8
- 2.Qd5#
- 1...Bxc5+!
- 1...Sxc5
- 1.Rf1?
- 1...Bxc5
- 2.Qa2#
- 1...Sxc5
- 2.Qd5#
- 1...gxf6
- 2.Rxf6#
- 1...Sf2
- 2.Sf4#
- 1...Bb6
- 2.Qa2#
- 1...Bb8
- 2.Qa2#
- 1...Sg1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Sa5
- 2.Qd5#
- 1...Sd8
- 2.Qd5#
- 1...Sxd6+!
- 1...Bxc5
- 1.Rf2?
- 1...Bxc5
- 2.Qa2#
- 1...Sxf2
- 2.Sf4#
- 1...Sxc5
- 2.Qd5#
- 1...gxf6
- 2.Rxf6#
- 1...Bb6
- 2.Qa2#
- 1...Bb8
- 2.Qa2#
- 1...Sg1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Sa5
- 2.Qd5#
- 1...Sd8
- 2.Qd5#
- 1...Sxd6+!
- 1...Bxc5
- 1.Rf3?
- 1...Bxc5
- 2.Qa2#
- 1...Sxc5
- 2.Qd5#
- 1...gxf6
- 2.Rxf6#
- 1...Sf2
- 2.Sf4#
- 1...Bb6
- 2.Qa2#
- 1...Bb8
- 2.Qa2#
- 1...Sg1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Sa5
- 2.Qd5#
- 1...Sd8
- 2.Qd5#
- 1...Sxd6+!
- 1...Bxc5
- 1.Rg5?
- 1...Sxd6+
- 2.Rxd6#
- 1...Bxc5
- 2.Qa2#
- 1...Sxg5
- 2.Sf4#
- 1...Sxc5
- 2.Qd5#
- 1...Sf2
- 2.Sf4#
- 1...Bb6
- 2.Qa2#
- 1...Bb8
- 2.Qa2#
- 1...Sg1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sa5
- 2.Qd5#
- 1...Sd8
- 2.Qd5#
- 1...gxf6!
- 1...Sxd6+
- 1.Rh5?
- 1...Sxd6+
- 2.Rxd6#
- 1...Bxc5
- 2.Qa2#
- 1...Sxc5
- 2.Qd5#
- 1...Sf2
- 2.Sf4#
- 1...Bb6
- 2.Qa2#
- 1...Bb8
- 2.Qa2#
- 1...Sg1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Sa5
- 2.Qd5#
- 1...Sd8
- 2.Qd5#
- 1...gxf6!
- 1...Sxd6+
- 1.Qxb7?
- threat
- 2.Qd5#
- 1...Sf4
- 2.Sxf4#
- 1...Bxb7!
- threat
- 1.Qxc8?
- threat
- 2.Qe8#
- 2.Qg8#
- 1...Sxd6+
- 2.Rxd6#
- 1...Sg5
- 2.Sf4#
- 2.Qe8#
- 1...Sd8!
- threat
- 1.fxg7?
- threat
- 2.Rf6#
- 2.g8Q#
- 2.g8B#
- 1...Bxc5
- 2.Rf6#
- 2.Qa2#
- 2.g8Q#
- 2.g8B#
- 1...Sxc5
- 2.Rf6#
- 2.Qd5#
- 2.g8Q#
- 2.g8B#
- 1...Sf2
- 2.Sf4#
- 2.Rf6#
- 2.g8Q#
- 2.g8B#
- 1...Bb6
- 2.Rf6#
- 2.Qa2#
- 2.g8Q#
- 2.g8B#
- 1...Bb8
- 2.Rf6#
- 2.Qa2#
- 2.g8Q#
- 2.g8B#
- 1...Sg1
- 2.Sf4#
- 2.Rf6#
- 2.g8Q#
- 2.g8B#
- 1...Sf4
- 2.Sxf4#
- 2.Rf6#
- 2.g8Q#
- 2.g8B#
- 1...Sg5
- 2.Sf4#
- 2.Rf6#
- 1...Sa5
- 2.Rf6#
- 2.Qd5#
- 2.g8Q#
- 2.g8B#
- 1...Sd8
- 2.Rf6#
- 2.Qd5#
- 1...Sxd6+!
- threat
- 1.Kb4?
- Keys
- 1.Re4!
- 1...Sxd6+
- 2.exd6#
- 1...Kd5
- 2.Bf7#
- 2.e6#
- 1...Bxc5
- 2.Qa2#
- 1...Sxc5
- 2.Sd4#
- 1...gxf6
- 2.exf6#
- 1...Sf2
- 2.Sf4#
- 1...Bb6
- 2.Qa2#
- 1...Bb8
- 2.Qa2#
- 1...Sg1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Sa5
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 1...Sxd6+
- 1.Re4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(c);OGATE,XP(E)::QAB(K)
- B(c);OGATE::QAB(K)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);OGATE::QAB1(K)
- S(d);OGATE,XP(E)::QAB1(K)
- S(d);CHECK,OGATE,XB(H)::R1(C),XS(d)
- P(f);OGATE,XP(I)::R1(G),XP(f)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- S(d);OGATE,XP(E)::QAB1(K)
- P(f);OGATE,XP(I)::R1(G),XP(f)
- B(c);OGATE::QAB(K)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);OGATE::QAB1(K)
- Refutation
- B(c);CHECK,XP(E)
- Try
- R(G);
- Vars
- B(c);OGATE,XP(E)::QAB(K)
- S(d);OGATE,XP(E)::QAB1(K)
- P(f);OGATE,XP(I)::R1(G),XP(f)
- S(a);N_GUARD::S(A)
- B(c);OGATE::QAB(K)
- S(a);N_GUARD::S(A),XS(a)
- S(d);OGATE::QAB1(K)
- Refutation
- S(d);CHECK,XB(H)
- Try
- R(G);
- Vars
- B(c);OGATE,XP(E)::QAB(K)
- S(a);N_GUARD,XR(G)::S(A)
- S(d);OGATE,XP(E)::QAB1(K)
- P(f);OGATE,XP(I)::R1(G),XP(f)
- B(c);OGATE::QAB(K)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(d);OGATE::QAB1(K)
- Refutation
- S(d);CHECK,XB(H)
- Try
- R(G);
- Vars
- B(c);OGATE,XP(E)::QAB(K)
- S(d);OGATE,XP(E)::QAB1(K)
- P(f);OGATE,XP(I)::R1(G),XP(f)
- S(a);N_GUARD::S(A)
- B(c);OGATE::QAB(K)
- S(a);N_GUARD::S(A),XS(a)
- S(d);OGATE::QAB1(K)
- Refutation
- S(d);CHECK,XB(H)
- Try
- R(G);
- Vars
- S(d);CHECK,OGATE,XB(H)::R1(C),XS(d)
- B(c);OGATE,XP(E)::QAB(K)
- S(a);N_GUARD,XR(G)::S(A)
- S(d);OGATE,XP(E)::QAB1(K)
- S(a);N_GUARD::S(A)
- B(c);OGATE::QAB(K)
- S(a);N_GUARD::S(A),XS(a)
- S(d);OGATE::QAB1(K)
- Refutation
- P(f);XP(I)
- Try
- R(G);
- Vars
- S(d);CHECK,OGATE,XB(H)::R1(C),XS(d)
- B(c);OGATE,XP(E)::QAB(K)
- S(d);OGATE,XP(E)::QAB1(K)
- S(a);N_GUARD::S(A)
- B(c);OGATE::QAB(K)
- S(a);N_GUARD::S(A),XS(a)
- S(d);OGATE::QAB1(K)
- Refutation
- P(f);XP(I)
- Try
- Q(K);XS(d)
- Threat
- QAB1(K)
- Vars
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- B(g);XQ(K)
- Try
- Q(K);P_PINP(e),XB(g)
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,OGATE,XB(H)::R1(C),XS(d)
- Refutation
- S(d);
- Try
- P(I);XP(f)
- Threat
- DUALS(3)
- Refutation
- S(d);CHECK,XB(H)
- Try
- Actual
- R(C);
- Vars
- S(d);CHECK,OGATE,XB(H)::R(C)+P(F),XS(d)
- B(c);OGATE,XP(E)::QAB(K)
- S(d);XP(E)::S(A)
- P(f);OGATE,XP(I)::R(C)+P(F),XP(f)
- S(a);N_GUARD::S(A)
- B(c);OGATE::QAB(K)
- S(a);N_GUARD::S(A),XS(a)
- S(d);::S(A)
Developed and maintained by Brian Stephenson.
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