MESON Chess Problem Database
Problem Display
PID: 254487 (3R1B2/8/3N4/1B1rp3/1n1kPp1p/1Kp4r/2Pp2P1/Q2N1n2 w - - 0 1)
Volkmann, Albert
Die Schwalbe, 1930
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Kc5
- 2.Qa7#
- 1...Rh1
- 2.Qxc3#
- 1...Rh2
- 2.Qxc3#
- 1...Se3
- 2.Qxc3#
- 1...Sg3
- 2.Qxc3#
- 1...Sd3
- 2.Qxc3#
- 1...f3
- 2.Qxc3#
- 1...Kc5
- Tries
- 1.Sf2?
- threat
- 2.Sf5#
- 1...Kc5
- 2.Qa7#
- 1...Rxd6
- 2.Qa7#
- 1...Se3
- 2.Qxc3#
- 1...Sg3
- 2.Qxc3#
- 1...Ke3!
- threat
- 1.Sf2?
- Keys
- 1.Sxc3!
- threat
- 2.Sf5#
- 1...Rxc3+
- 2.Qxc3#
- 1...Ke3
- 2.Sd1#
- 1...Kc5
- 2.Qa7#
- 1...Rxd6
- 2.Qa7#
- 1...Se3
- 2.Sa4#
- 1...Sg3
- 2.Qg1#
- threat
- 1.Sxc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- K(f);N_SPINP(c),S_CUTR(i),S_FLIGHT::QAB(A)
- R(d);N_GUARD::QAB1(A),XP(c)
- S(a);S_CUTR(d)::QAB1(A),XP(c)
- S(e);S_CUTR(d)::QAB1(A),XP(c)
- P(g);S_CUTR(d)::QAB1(A),XP(c)
- Tries
- Try
- S(B);
- Threat
- S(H)
- Vars
- K(f);N_SPINP(c),S_CUTR(i),S_FLIGHT::QAB(A)
- R(i);N_GUARD,P_SPINR(i),XS(H)::QAB(A)
- S(a);S_CUTR(d)::QAB1(A),XP(c)
- Refutation
- K(f);N_SPINP(c),S_FLIGHT
- Try
- Actual
- S(B);P_SPINS(B),XP(c)
- Threat
- S(H)
- Vars
- R(d);CHECK,OGATE,P_SPINR(d),XS(B)::QAB1(A),XR(d)
- K(f);N_PINS(B),S_FLIGHT::S(B)
- K(f);S_CUTR(i),S_FLIGHT::QAB(A)
- R(i);N_GUARD,P_SPINR(i),XS(H)::QAB(A)
- S(a);N_PINS(B),SBLOCK::QAB(A)+S(B)
- S(a);N_PINS(B),OGATE::QAB(A)
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).