MESON Chess Problem Database
Problem Display
PID: 11408 (2n5/B1KN4/1p1P2N1/p2k1P1n/P1RbrpRP/1P3QP1/8/8 w - - 0 1)
Drese, Gerardus Hendrikus
1st Prize, Magasinet, 1938
#2
13 + 8
| 6426 | Probleemcomponisten V - G H Drese | 1947 |
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Qxe4#
- 1...Bg1
- 2.Qxe4#
- 1...Bb2
- 2.Qxe4#
- 1...Bf2
- 2.Qxe4#
- 1...Bc3
- 2.Qxe4#
- 1...Be3
- 2.Qxe4#
- 1...Bc5
- 2.Qxe4#
- 1...Be5
- 2.Qxe4#
- 1...Bf6
- 2.Qxe4#
- 1...Bg7
- 2.Qxe4#
- 1...Bh8
- 2.Qxe4#
- 1...Sxg3
- 2.Sxf4#
- 1...Sf6
- 2.Sxf4#
- 1...Sg7
- 2.Sxf4#
- 1...Sxd6
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...fxg3
- 2.Qxe4#
- 1...b5
- 2.Rxd4#
- 1...Ba1
- Tries
- 1.Sf6+?
- 1...Bxf6
- 2.Qxe4#
- 1...Sxf6!
- 1...Bxf6
- 1.Bxb6?
- threat
- 2.Rxd4#
- 1...Sxb6
- 2.Se7#
- 1...Ba1
- 2.Qxe4#
- 1...Bg1
- 2.Qxe4#
- 1...Bb2
- 2.Qxe4#
- 1...Bf2
- 2.Qxe4#
- 1...Bc3
- 2.Qxe4#
- 1...Be3
- 2.Qxe4#
- 1...Bc5
- 2.Qxe4#
- 1...Be5
- 2.Qxe4#
- 1...Bf6
- 2.Qxe4#
- 1...Bg7
- 2.Qxe4#
- 1...Bh8
- 2.Qxe4#
- 1...Bxb6+!
- threat
- 1.Bb8?
- 1...Sxg3
- 2.Sxf4#
- 1...Sxd6
- 2.Se7#
- 1...fxg3
- 2.Qxe4#
- 1...Ba1
- 2.Qxe4#
- 1...Bg1
- 2.Qxe4#
- 1...Bb2
- 2.Qxe4#
- 1...Bf2
- 2.Qxe4#
- 1...Bc3
- 2.Qxe4#
- 1...Be3
- 2.Qxe4#
- 1...Bc5
- 2.Qxe4#
- 1...Be5
- 2.Qxe4#
- 1...Bf6
- 2.Qxe4#
- 1...Bg7
- 2.Qxe4#
- 1...Bh8
- 2.Qxe4#
- 1...Sf6
- 2.Sxf4#
- 1...Sg7
- 2.Sxf4#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...b5!
- 1...Sxg3
- 1.Rb4?
- 1...Sxg3
- 2.Sxf4#
- 1...Sxd6
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...fxg3
- 2.Qxe4#
- 1...Ba1
- 2.Qxe4#
- 1...Bg1
- 2.Qxe4#
- 1...Bb2
- 2.Qxe4#
- 1...Bf2
- 2.Qxe4#
- 1...Bc3
- 2.Qxe4#
- 1...Be3
- 2.Qxe4#
- 1...Bc5
- 2.Qxe4#
- 1...Be5
- 2.Qxe4#
- 1...Bf6
- 2.Qxe4#
- 1...Bg7
- 2.Qxe4#
- 1...Bh8
- 2.Qxe4#
- 1...Sf6
- 2.Sxf4#
- 1...Sg7
- 2.Sxf4#
- 1...Se7
- 2.Sxe7#
- 1...b5
- 2.Rxd4#
- 1...axb4!
- 1...Sxg3
- 1.Rg5?
- 1...Sxg3
- 2.Sxf4#
- 1...Sxd6
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...Ba1
- 2.Qxe4#
- 1...Bg1
- 2.Qxe4#
- 1...Bb2
- 2.Qxe4#
- 1...Bf2
- 2.Qxe4#
- 1...Bc3
- 2.Qxe4#
- 1...Be3
- 2.Qxe4#
- 1...Bc5
- 2.Qxe4#
- 1...Be5
- 2.Qxe4#
- 1...Bf6
- 2.Qxe4#
- 1...Bg7
- 2.Qxe4#
- 1...Bh8
- 2.Qxe4#
- 1...Sf6
- 2.Sxf4#
- 1...Sg7
- 2.Sxf4#
- 1...Se7
- 2.Sxe7#
- 1...b5
- 2.Rxd4#
- 1...fxg3!
- 1...Sxg3
- 1.Qh1?
- 1...Sxg3
- 2.Sxf4#
- 1...Sxd6
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...fxg3
- 2.Qxe4#
- 1...Ba1
- 2.Qxe4#
- 1...Bg1
- 2.Qxe4#
- 1...Bb2
- 2.Qxe4#
- 1...Bf2
- 2.Qxe4#
- 1...Bc3
- 2.Qxe4#
- 1...Be3
- 2.Qxe4#
- 1...Bc5
- 2.Qxe4#
- 1...Be5
- 2.Qxe4#
- 1...Bf6
- 2.Qxe4#
- 1...Bg7
- 2.Qxe4#
- 1...Bh8
- 2.Qxe4#
- 1...Sf6
- 2.Sxf4#
- 1...Sg7
- 2.Sxf4#
- 1...Se7
- 2.Sxe7#
- 1...b5
- 2.Rxd4#
- 1...f3!
- 1...Sxg3
- 1.Qg2?
- 1...Sxg3
- 2.Sxf4#
- 1...Sxd6
- 2.Se7#
- 1...Sxa7
- 2.Se7#
- 1...fxg3
- 2.Qxe4#
- 1...Ba1
- 2.Qxe4#
- 1...Bg1
- 2.Qxe4#
- 1...Bb2
- 2.Qxe4#
- 1...Bf2
- 2.Qxe4#
- 1...Bc3
- 2.Qxe4#
- 1...Be3
- 2.Qxe4#
- 1...Bc5
- 2.Qxe4#
- 1...Be5
- 2.Qxe4#
- 1...Bf6
- 2.Qxe4#
- 1...Bg7
- 2.Qxe4#
- 1...Bh8
- 2.Qxe4#
- 1...Sf6
- 2.Sxf4#
- 1...Sg7
- 2.Sxf4#
- 1...Se7
- 2.Sxe7#
- 1...b5
- 2.Rxd4#
- 1...f3!
- 1...Sxg3
- 1.Sf6+?
- Keys
- 1.Qd3!
- 1...Sxg3
- 2.Sf6#
- 1...Sxd6
- 2.Sxb6#
- 1...Sxa7
- 2.Sxb6#
- 1...fxg3
- 2.Qxe4#
- 1...f3
- 2.Qxe4#
- 1...Re1
- 2.Rxd4#
- 2.Qxd4#
- 1...Re2
- 2.Rxd4#
- 2.Qxd4#
- 1...Re3
- 2.Rxd4#
- 2.Qxd4#
- 1...Re5
- 2.Rxd4#
- 2.Qxd4#
- 1...Re6
- 2.Rxd4#
- 2.Qxd4#
- 1...Re7
- 2.Rxd4#
- 2.Qxd4#
- 1...Re8
- 2.Rxd4#
- 2.Qxd4#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...Se7
- 2.Sxb6#
- 1...b5
- 2.Rc5#
- 1...Sxg3
- 1.Qd3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- B(a);::QAB1(B),XR(b)
- B(a);P_PINP(I)::QAB1(B),XR(b)
- S(f);N_GUARD,XP(C)::S(J),XP(c)
- S(f);N_GUARD::S(J),XP(c)
- S(h);N_GUARD,XP(I)::S(J)
- S(h);N_GUARD,XB(K)::S(J)
- S(h);N_GUARD::S(J),XS(h)
- P(c);XP(C)::QAB1(B),XR(b)
- P(g);::R1(E),XB(a)
- Tries
- Try
- S(M);CHECK
- Vars
- B(a);XS(M)::QAB1(B),XR(b)
- Refutation
- S(f);XS(M)
- Try
- B(K);XP(g)
- Threat
- R1(E),XB(a)
- Vars
- S(h);N_GUARD,XB(K)::S(J)
- B(a);::QAB1(B),XR(b)
- B(a);P_PINP(I)::QAB1(B),XR(b)
- Refutation
- B(a);CHECK,XB(K)
- Try
- B(K);
- Vars
- S(f);N_GUARD,XP(C)::S(J),XP(c)
- S(h);N_GUARD,XP(I)::S(J)
- P(c);XP(C)::QAB1(B),XR(b)
- B(a);::QAB1(B),XR(b)
- B(a);P_PINP(I)::QAB1(B),XR(b)
- S(f);N_GUARD::S(J),XP(c)
- S(h);N_GUARD::S(J)
- S(h);N_GUARD::S(J),XS(h)
- Refutation
- P(g);
- Try
- R(E);
- Vars
- S(f);N_GUARD,XP(C)::S(J),XP(c)
- S(h);N_GUARD,XP(I)::S(J)
- S(h);N_GUARD,XB(K)::S(J)
- P(c);XP(C)::QAB1(B),XR(b)
- B(a);::QAB1(B),XR(b)
- B(a);P_PINP(I)::QAB1(B),XR(b)
- S(f);N_GUARD::S(J),XP(c)
- S(h);N_GUARD::S(J),XS(h)
- P(g);::R1(E),XB(a)
- Refutation
- P(d);XR(E)
- Try
- R(F);
- Vars
- S(f);N_GUARD,XP(C)::S(J),XP(c)
- S(h);N_GUARD,XP(I)::S(J)
- S(h);N_GUARD,XB(K)::S(J)
- B(a);::QAB1(B),XR(b)
- B(a);P_PINP(I)::QAB1(B),XR(b)
- S(f);N_GUARD::S(J),XP(c)
- S(h);N_GUARD::S(J),XS(h)
- P(g);::R1(E),XB(a)
- Refutation
- P(c);XP(C)
- Try
- Q(B);
- Vars
- S(f);N_GUARD,XP(C)::S(J),XP(c)
- S(h);N_GUARD,XP(I)::S(J)
- S(h);N_GUARD,XB(K)::S(J)
- P(c);XP(C)::QAB1(B),XR(b)
- B(a);::QAB1(B),XR(b)
- B(a);P_PINP(I)::QAB1(B),XR(b)
- S(f);N_GUARD::S(J),XP(c)
- S(h);N_GUARD::S(J),XS(h)
- P(g);::R1(E),XB(a)
- Refutation
- P(c);N_SPINR(b)
- Try
- Q(B);
- Vars
- S(f);N_GUARD,XP(C)::S(J),XP(c)
- S(h);N_GUARD,XP(I)::S(J)
- S(h);N_GUARD,XB(K)::S(J)
- P(c);XP(C)::QAB1(B),XR(b)
- B(a);::QAB1(B),XR(b)
- B(a);P_PINP(I)::QAB1(B),XR(b)
- S(f);N_GUARD::S(J),XP(c)
- S(h);N_GUARD::S(J),XS(h)
- P(g);::R1(E),XB(a)
- Refutation
- P(c);N_SPINR(b)
- Try
- Actual
- Q(B);N_PINR(b),P_PINB(a)
- Vars
- S(f);N_GUARD,XP(C)::S(M)
- S(h);N_GUARD,XP(I)::S(M),XP(g)
- S(h);N_GUARD,XB(K)::S(M),XP(g)
- P(c);XP(C)::QAB1(B),XR(b)
- P(c);::QAB1(B),XR(b)
- S(f);N_GUARD::S(M),XS(f)
- S(f);N_GUARD::S(M)
- S(h);N_GUARD::S(M),XP(g)
- P(g);N_GUARD::R1(E)
Developed and maintained by Brian Stephenson.
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