MESON Chess Problem Database
Problem Display
PID: 16341 (8/4p3/2b1R3/1kN1P3/prNPP3/b2p2K1/3Q4/2R1B3 w - - 0 1)
Gunn, Robert Ivan
Chess, 1940
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qa5#
- 1...Rb2
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Bb2
- 2.Qxb4#
- 1...Bxe4
- 2.Rb6#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...Rb1
- Tries
- 1.Kf2?
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Bxe4
- 2.Rb6#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...Rb2!
- 1...Rxc4
- 1.Kh2?
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Bxe4
- 2.Rb6#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...Rb2!
- 1...Rxc4
- 1.Kf3?
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Rb2
- 2.Qa5#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...Bxe4+!
- 1...Rxc4
- 1.Kh3?
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Bxe4
- 2.Rb6#
- 1...Rb2
- 2.Qa5#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...Bd7!
- 1...Rxc4
- 1.Kf4?
- 1...Rxc4
- 2.Qa5#
- 1...Bxe4
- 2.Rb6#
- 1...Rb2
- 2.Qa5#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...Bxc1!
- 1...Rxc4
- 1.Kg4?
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Bxe4
- 2.Rb6#
- 1...Rb2
- 2.Qa5#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...Bd7!
- 1...Rxc4
- 1.Sxa3+?
- 1...Ka5
- 2.Qxb4#
- 1...Kb6!
- 1...Ka5
- 1.Rc2?
- 1...Rxc4
- 2.Qa5#
- 1...Bxe4
- 2.Rb6#
- 1...Rb2
- 2.Qa5#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bc1
- 2.Qxb4#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...dxc2!
- 1...Rxc4
- 1.Rg6?
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Bxe4
- 2.Rb6#
- 1...Rb2
- 2.Qa5#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...e6!
- 1...Rxc4
- 1.Rh6?
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Bxe4
- 2.Rb6#
- 1...Rb2
- 2.Qa5#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...e6!
- 1...Rxc4
- 1.Qc3?
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Bxe4
- 2.Rb6#
- 1...Rb2
- 2.Qa5#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...d2!
- 1...Rxc4
- 1.Kf2?
- Keys
- 1.Kh4!
- 1...Rxc4
- 2.Qa5#
- 1...Bxc1
- 2.Qxb4#
- 1...Bxe4
- 2.Rb6#
- 1...Rb2
- 2.Qa5#
- 1...Rb1
- 2.Qa5#
- 1...Rb3
- 2.Qa5#
- 1...Bb2
- 2.Qxb4#
- 1...Bd5
- 2.Rb6#
- 1...Bb7
- 2.Rb6#
- 1...Bd7
- 2.Rb6#
- 1...Ba8
- 2.Rb6#
- 1...Be8
- 2.Rb6#
- 1...Rxc4
- 1.Kh4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(d);OGATE::QAR1(C)
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE,XP(G)::R1(J)
- B(f);OGATE::R1(J)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- Refutation
- R(d);P_PINQ(C)
- Try
- K(D);S_FLIGHT
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- Refutation
- R(d);P_PINQ(C)
- Try
- K(D);P-FLIGHT,P_SPINP(G)
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- B(f);N_PINP(G),OGATE::R1(J)
- Refutation
- B(f);CHECK,XP(G)
- Try
- K(D);P-FLIGHT
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- Refutation
- B(f);P_PINR(J)
- Try
- K(D);S_FLIGHT
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- Refutation
- B(a);P_PINQ(C),XR(A)
- Try
- K(D);P-FLIGHT
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- Refutation
- B(f);P_PINR(J)
- Try
- S(E);CHECK,XB(a)
- Vars
- K(e);P-FLIGHT,P_SPINR(d)::QAB1(C),XR(d)
- Refutation
- K(e);P-FLIGHT,P_SPINB(f)
- Try
- R(A);
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- Refutation
- P(b);XR(A)
- Try
- R(J);
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- Refutation
- P(g);
- Try
- R(J);
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- Refutation
- P(g);
- Try
- Q(C);
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
- Refutation
- P(b);
- Try
- Actual
- K(D);S_FLIGHT
- Vars
- R(d);OGATE,XS(E)::QAR1(C)
- B(a);N_GUARD,XR(A)::QAR1(C),XR(d)
- B(f);OGATE,XP(G)::R1(J)
- R(d);OGATE::QAR1(C)
- B(a);N_GUARD::QAR1(C),XR(d)
- B(f);OGATE::R1(J)
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).