MESON Chess Problem Database
Problem Display
PID: 92269 (8/BQ6/8/6p1/N1k3K1/1pp2N2/1Pr1qp2/2R1bB2 w - - 0 1)
Dusold, Johannes
3rd Prize, Bayer Schach, 1923
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Qd5#
- 1...Qxf1
- 2.Se5#
- 1...Qd3
- 2.Se5#
- 1...Rxc1
- 2.Bxe2#
- 1...Rxb2
- 2.Sxb2#
- 1...Rd2
- 2.Rxc3#
- 1...Bd2
- 2.Bxe2#
- 1...cxb2
- 2.Bxe2#
- 1...Kd3
- Tries
- 1.Kg3?
- threat
- 2.Se5#
- 1...Kd3
- 2.Qd5#
- 1...Qd3!
- threat
- 1.Kf5?
- threat
- 2.Se5#
- 1...Kd3
- 2.Qe4#
- 2.Qd5#
- 2.Qa6#
- 2.Qb5#
- 1...Qd3+!
- threat
- 1.Kxg5?
- threat
- 2.Se5#
- 1...Kd3
- 2.Qd5#
- 1...Bd2+!
- threat
- 1.Sxc3?
- threat
- 2.Qe4#
- 2.Qb5#
- 1...Kd3
- 2.Qe4#
- 2.Qd5#
- 2.Qa6#
- 2.Qb5#
- 1...Rxc3
- 2.Bxe2#
- 1...Rd2
- 2.Qb5#
- 1...Bxc3!
- threat
- 1.Bxf2?
- 1...Kd3
- 2.Qd5#
- 1...Qxf1
- 2.Se5#
- 1...Rxc1
- 2.Bxe2#
- 1...Rxb2
- 2.Sxb2#
- 1...cxb2
- 2.Bxe2#
- 1...Qd3
- 2.Se5#
- 1...Rd2
- 2.Rxc3#
- 1...Bd2
- 2.Bxe2#
- 1...Bxf2!
- 1...Kd3
- 1.Be3?
- 1...Qxf1
- 2.Se5#
- 1...Rxc1
- 2.Bxe2#
- 1...Rxb2
- 2.Sxb2#
- 1...cxb2
- 2.Bxe2#
- 1...Qd3
- 2.Se5#
- 1...Rd2
- 2.Rxc3#
- 1...Bd2
- 2.Bxe2#
- 1...Kd3!
- 1...Qxf1
- 1.Bc5?
- 1...Kd3
- 2.Qd5#
- 1...Qxf1
- 2.Se5#
- 1...Rxc1
- 2.Bxe2#
- 1...cxb2
- 2.Bxe2#
- 1...Qd3
- 2.Se5#
- 1...Rd2
- 2.Rxc3#
- 1...Bd2
- 2.Bxe2#
- 1...Rxb2!
- 1...Kd3
- 1.Rd1?
- threat
- 2.Rd4#
- 1...Bd2
- 2.Bxe2#
- 1...Qd3
- 2.Se5#
- 2.Bxd3#
- 1...Rd2!
- threat
- 1.Rxc2?
- threat
- 2.Bxe2#
- 1...Qxf1
- 2.Se5#
- 1...Qd3
- 2.Se5#
- 1...Kd3!
- threat
- 1.Qa6+?
- 1...Kb4
- 2.Bc5#
- 1...Kd5!
- 1...Kb4
- 1.Qc6+?
- 1...Kd3
- 2.Qd5#
- 1...Kb4!
- 1...Kd3
- 1.Qxb3+?
- 1...Kd3
- 2.Qd5#
- 1...Kxb3!
- 1...Kd3
- 1.Kg3?
- Keys
- 1.Kh5!
- 1...Kd3
- 2.Qd5#
- 1...Qxf1
- 2.Se5#
- 1...Rxc1
- 2.Bxe2#
- 1...Rxb2
- 2.Sxb2#
- 1...cxb2
- 2.Bxe2#
- 1...Qd3
- 2.Se5#
- 1...Rd2
- 2.Rxc3#
- 1...Bd2
- 2.Bxe2#
- 1...g4
- 2.Se5#
- 1...Kd3
- 1.Kh5!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(g);S_FLIGHT::QAR2(H)
- Q(c);N_PINS(D),N_SPINQ(c),XB(B)::S(D)
- Q(c);N_PINS(D)::S(D)
- R(b);N_GUARD,XR(A)::B(B),XQ(c)
- R(b);P_SPINP(f),XP(C)::S(E),XR(b)
- R(b);OGATE,P_SPINP(f)::R1(A),XP(f)
- B(a);S_CUTR(b)::B(B),XQ(c)
- P(f);P_SPINR(b),XP(C)::B(B),XQ(c)
- Tries
- Try
- K(F);N_SPINS(D),P-FLIGHT
- Threat
- S(D)
- Vars
- K(g);S_FLIGHT::QAR2(H)
- Refutation
- Q(c);P_PINS(D)
- Try
- K(F);N_SPINS(D),S_FLIGHT
- Threat
- S(D)
- Refutation
- Q(c);CHECK
- Try
- K(F);N_SPINS(D),P-FLIGHT,XP(h)
- Threat
- S(D)
- Vars
- K(g);S_FLIGHT::QAR2(H)
- Refutation
- B(a);CHECK
- Try
- S(E);XP(f)
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD,P_SPINR(b),XS(E)::B(B),XQ(c)
- R(b);::QAB1(H)
- Refutation
- B(a);XS(E)
- Try
- B(G);XP(d)
- Vars
- K(g);S_FLIGHT::QAR2(H)
- Q(c);N_PINS(D),N_SPINQ(c),XB(B)::S(D)
- R(b);N_GUARD,XR(A)::B(B),XQ(c)
- R(b);P_SPINP(f),XP(C)::S(E),XR(b)
- P(f);P_SPINR(b),XP(C)::B(B),XQ(c)
- Q(c);N_PINS(D)::S(D)
- R(b);OGATE,P_SPINP(f)::R1(A),XP(f)
- B(a);S_CUTR(b)::B(B),XQ(c)
- Refutation
- B(a);XB(G)
- Try
- B(G);
- Vars
- Q(c);N_PINS(D),N_SPINQ(c),XB(B)::S(D)
- R(b);N_GUARD,XR(A)::B(B),XQ(c)
- R(b);P_SPINP(f),XP(C)::S(E),XR(b)
- P(f);P_SPINR(b),XP(C)::B(B),XQ(c)
- Q(c);N_PINS(D)::S(D)
- R(b);OGATE,P_SPINP(f)::R1(A),XP(f)
- B(a);S_CUTR(b)::B(B),XQ(c)
- Refutation
- K(g);S_FLIGHT
- Try
- B(G);
- Vars
- K(g);S_FLIGHT::QAR2(H)
- Q(c);N_PINS(D),N_SPINQ(c),XB(B)::S(D)
- R(b);N_GUARD,XR(A)::B(B),XQ(c)
- P(f);P_SPINR(b),XP(C)::B(B),XQ(c)
- Q(c);N_PINS(D)::S(D)
- R(b);OGATE,P_SPINP(f)::R1(A),XP(f)
- B(a);S_CUTR(b)::B(B),XQ(c)
- Refutation
- R(b);P_SPINP(f),XP(C)
- Try
- R(A);
- Threat
- R1(A)
- Vars
- B(a);S_CUTR(b)::B(B),XQ(c)
- Refutation
- R(b);
- Try
- R(A);P_PINP(f),XR(b)
- Threat
- B(B),XQ(c)
- Vars
- Q(c);N_PINS(D),N_SPINQ(c),XB(B)::S(D)
- Q(c);N_PINS(D)::S(D)
- Refutation
- K(g);N_SPINP(f),S_FLIGHT
- Try
- Q(H);CHECK
- Vars
- K(g);N_SPINQ(c),P-FLIGHT::B(G)
- Refutation
- K(g);N_SPINQ(c),S_FLIGHT
- Try
- Q(H);CHECK
- Vars
- K(g);S_FLIGHT::QAR2(H)
- Refutation
- K(g);N_SPINQ(c),P-FLIGHT
- Try
- Q(H);CHECK,XP(e)
- Vars
- K(g);OGATE,P_SPINP(f),S_FLIGHT::QAR2(H)
- Refutation
- K(g);N_SPINQ(c),S_FLIGHT,XQ(H)
- Try
- Actual
- K(F);S_FLIGHT
- Vars
- K(g);S_FLIGHT::QAR2(H)
- Q(c);N_PINS(D),N_SPINQ(c),XB(B)::S(D)
- R(b);N_GUARD,XR(A)::B(B),XQ(c)
- R(b);P_SPINP(f),XP(C)::S(E),XR(b)
- P(f);P_SPINR(b),XP(C)::B(B),XQ(c)
- Q(c);N_PINS(D)::S(D)
- R(b);OGATE,P_SPINP(f)::R1(A),XP(f)
- B(a);S_CUTR(b)::B(B),XQ(c)
- P(h);N_PINS(D)::S(D)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).