MESON Chess Problem Database

Problem Display
PID: 193816 (2B1K2B/8/8/2pR1RpP/1b2k3/pr1npp2/1p4n1/1Q6 w - - 0 1)

van Dijk, Johannes

Algemeen Handelsblad, 1916

2B1K2B/8/8/2pR1RpP/1b2k3/pr1npp2/1p4n1/1Q6

#2

7 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Qxd3#
    • 1...Sf4
      • 2.Rfe5#
    • 1...c4
      • 2.Rd4#
  • Tries
    • 1.Bc3?
      • threat
        • 2.Rde5#
        • 2.Qxd3#
      • 1...Bxc3
        • 2.Qxd3#
      • 1...Se1
        • 2.Rde5#
      • 1...Sf4
        • 2.Rde5#
        • 2.Rfe5#
      • 1...c4
        • 2.Rd4#
        • 2.Rde5#
      • 1...Rxc3!
    • 1.Rxd3?
      • threat
        • 2.Rxb3#
        • 2.Rc3#
        • 2.Rd4#
      • 1...Rc3
        • 2.Rxc3#
        • 2.Rd4#
      • 1...Bc3
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rxc3#
        • 2.Rd4#
        • 2.Rdd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Se1
        • 2.Rd4#
      • 1...Sf4
        • 2.Rd4#
        • 2.Re5#
      • 1...a2
        • 2.Rd4#
      • 1...e2
        • 2.Rxb3#
        • 2.Rc3#
      • 1...Rxd3!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Re7#
      • 1...Kxf5
        • 2.Rd4#
      • 1...Bc3
        • 2.Qxd3#
      • 1...Sf4
        • 2.Re5#
      • 1...c4
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(h);S_CUTR(d)::QAB1(A),XS(e)
    • S(b);SBLOCK::R1(C)
    • P(j);N_GUARD::R1(B)
  • Tries
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(h);XB(G)::QAB1(A),XS(e)
        • S(b);::R1(B)
      • Refutation
        • R(d);XB(G)
    • Try
      • R(B);XS(e)
      • Threat
        • DUALS(3)
      • Vars
        • S(b);::QAB(A)+R(B),DCHECK
        • P(c);::QAB(A)+R(B),DCHECK
      • Refutation
        • R(d);P_SPINR(d),XR(B)
  • Actual
    • R(B);
    • Threat
      • R(B)
    • Vars
      • K(i);S_FLIGHT,XR(C)::B(E)+R(B)
      • B(h);S_CUTR(d)::QAB1(A),XS(e)
      • S(b);SBLOCK::R1(C)
      • P(j);N_GUARD::R1(B)
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Developed and maintained by Brian Stephenson.
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