MESON Chess Problem Database
Problem Display
PID: 6537 (3R2BB/nrn4Q/qN1b4/r4R1K/1Pp1k1P1/1N1p1p2/3P4/8 w - - 0 1)
Fleck, Ferenc
1st HM., L'Echiquier, 1931
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rf7#
- 2.Rff8#
- 1...Ra2
- 2.Rf7#
- 2.Rff8#
- 1...Ra3
- 2.Rf7#
- 2.Rff8#
- 1...Ra4
- 2.Rf7#
- 2.Rff8#
- 1...Rxf5+
- 2.Qxf5#
- 1...Bh2
- 2.Rd4#
- 1...Bg3
- 2.Rd4#
- 1...Bxb4
- 2.Rd4#
- 1...Bf4
- 2.Rxa5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfd5#
- 2.Re5#
- 2.Rd4#
- 1...Bc5
- 2.Rf7#
- 2.Rff8#
- 1...Be5
- 2.Rf6#
- 2.Rf7#
- 2.Rff8#
- 1...Be7
- 2.Rd4#
- 1...Bf8
- 2.Rd4#
- 1...Sab5
- 2.Rf7#
- 2.Rff8#
- 1...Scb5
- 2.Bd5#
- 2.Rf7#
- 1...Sd5
- 2.Rf7#
- 1...Ra1
- Tries
- 1.Sc5+?
- 1...Bxc5
- 2.Rf7#
- 2.Rff8#
- 1...Rxc5!
- 1...Bxc5
- 1.Sd5?
- threat
- 2.Sc3#
- 2.Sf6#
- 2.Rf4#
- 2.Re5#
- 2.Rg5#
- 2.Rff8#
- 1...Bxb4
- 2.Rf4#
- 2.Re5#
- 1...Sxd5
- 2.Rf7#
- 1...cxb3
- 2.Sc3#
- 2.Rf4#
- 2.Rg5#
- 2.Rff8#
- 1...Bh2
- 2.Sc3#
- 2.Rf4#
- 2.Re5#
- 1...Bg3
- 2.Sc3#
- 2.Rf4#
- 2.Re5#
- 1...Bf4
- 2.Sc3#
- 2.Rxf4#
- 2.Re5#
- 1...Bc5
- 2.Sc3#
- 2.Rf4#
- 2.Re5#
- 1...Be5
- 2.Rf4#
- 2.Rxe5#
- 2.Rf6#
- 1...Be7
- 2.Sc3#
- 2.Rf4#
- 2.Re5#
- 1...Bf8
- 2.Sc3#
- 2.Rf4#
- 2.Re5#
- 1...Sab5
- 2.Sf6#
- 2.Rf4#
- 2.Re5#
- 2.Rg5#
- 2.Rff8#
- 1...Scb5
- 2.Sf6#
- 2.Rf4#
- 2.Re5#
- 1...Se6
- 2.Sc3#
- 2.Sf6#
- 2.Re5#
- 1...Sa8
- 2.Sc3#
- 2.Sf6#
- 2.Rf4#
- 2.Re5#
- 1...Se8
- 2.Sc3#
- 2.Rf4#
- 2.Re5#
- 1...f2
- 2.Sc3#
- 2.Sf6#
- 2.Rxf2#
- 2.Rf4#
- 2.Rff8#
- 1...c3
- 2.Sxc3#
- 2.Sf6#
- 2.Rf4#
- 2.Re5#
- 2.Rg5#
- 2.Rff8#
- 1...Rxd5!
- threat
- 1.Bd5+?
- 1...Sxd5
- 2.Rf7#
- 1...Rxd5!
- 1...Sxd5
- 1.Rg5+?
- 1...Rf5
- 2.Qxf5#
- 1...Kf4!
- 1...Rf5
- 1.Rf8?
- threat
- 2.Rxa5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 1...Rxf5+
- 2.Qxf5#
- 1...cxb3
- 2.Rxa5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 1...Qb5
- 2.Rxb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 1...Ra1
- 2.Rxf3#
- 2.Rf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rg5#
- 2.R5f7#
- 1...Ra2
- 2.Rxf3#
- 2.Rf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rg5#
- 2.R5f7#
- 1...Ra3
- 2.Rxf3#
- 2.Rf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rg5#
- 2.R5f7#
- 1...Ra4
- 2.Rxf3#
- 2.Rf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rg5#
- 2.R5f7#
- 1...Rb5
- 2.Rxb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 1...Rc5
- 2.Rxc5#
- 2.Rd5#
- 2.Re5#
- 1...Rd5
- 2.Rxd5#
- 2.Re5#
- 1...Re5
- 2.Rxe5#
- 1...Bc5
- 2.Rxf3#
- 2.Rf4#
- 2.Rxc5#
- 2.Rd5#
- 2.Re5#
- 2.Rg5#
- 2.R5f7#
- 1...Be5
- 2.Rxf3#
- 2.Rf4#
- 2.Rxe5#
- 2.Rg5#
- 2.R5f6#
- 2.R5f7#
- 1...Sab5
- 2.Rxf3#
- 2.Rf4#
- 2.Rxb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rg5#
- 2.R5f7#
- 1...Scb5
- 2.Bd5#
- 2.Rf4#
- 2.Re5#
- 2.R5f7#
- 1...Sd5
- 2.Rf4#
- 2.Re5#
- 2.R5f7#
- 1...Se6
- 2.Re5#
- 1...Sa8
- 2.Re5#
- 1...Se8
- 2.Re5#
- 1...Bxf8!
- threat
- 1.Sc5+?
- Keys
- 1.Sa4!
- threat
- 2.Sc3#
- 1...Rxf5+
- 2.Qxf5#
- 1...Rxa4
- 2.Rff8#
- 1...Bxb4
- 2.Rd4#
- 1...Be5
- 2.Rf6#
- 1...Sab5
- 2.Rff8#
- 1...Scb5
- 2.Bd5#
- 1...Sd5
- 2.Rf7#
- 1...c3
- 2.Sxc3#
- threat
- 1.Sa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(e);CHECK,OGATE,P_SPINR(e),XR(E)::QAB1(H),XR(e)
- B(g);OGATE::R1(I)
- B(g);OGATE,XP(C)::R1(I)
- S(j);N_PINR(E)::QAB(H)+R(E)
- Tries
- Try
- S(B);CHECK,N_SPINR(E)
- Refutation
- R(e);P_PINR(E),XS(B)
- Try
- S(G);N_SPINR(E)
- Threat
- DUALS(6)
- Vars
- S(j);SBLOCK,XS(G)::QAB(H)+R(E)
- Refutation
- R(e);P_PINR(E),XS(G)
- Try
- B(J);CHECK,N_SPINR(E)
- Vars
- S(j);XB(J)::QAB(H)+R(E)
- Refutation
- R(e);P_PINR(E),XB(J)
- Try
- R(E);CHECK
- Vars
- R(e);N_GUARD,P_SPINR(e)::QAB1(H),XR(e)
- Refutation
- K(d);P-FLIGHT
- Try
- R(I);
- Threat
- DUALS(5)
- Vars
- R(e);CHECK,OGATE,P_SPINR(e),XR(E)::QAB1(H),XR(e)
- R(e);::QAB(H)+R(E),DCHECK,XR(e)
- S(j);::QAB(H)+R(E),DCHECK
- Refutation
- B(g);XR(I)
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- R(e);CHECK,OGATE,P_SPINR(e),XR(E)::QAB1(H),XR(e)
- R(e);N_PINR(E),XS(G)::QAB(H)+R(E)
- B(g);OGATE,XP(C)::R1(I)
- B(g);N_PINR(E),SBLOCK::QAB(H)+R(E)
- S(h);N_PINR(E)::QAB(H)+R(E)
- S(j);N_GUARD,N_PINR(E),S_CUTR(e)::B(J)
- S(j);N_PINR(E),SBLOCK::QAB(H)+R(E)
- P(c);::S(G),XP(c)
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