MESON Chess Problem Database

Problem Display
PID: 71740 (7Q/2NpbpB1/4p3/Kp6/pr2k2p/1R2p3/N3B3/1br2R2 w - - 0 1)

Drese, Gerardus Hendrikus

1st Place, Match: Flanders - Netherlands, 1934

7Q/2NpbpB1/4p3/Kp6/pr2k2p/1R2p3/N3B3/1br2R2

#2

8 + 12

6426 Probleemcomponisten V - G H Drese 1947

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sc3#
    • 1...Re1
      • 2.Sc3#
    • 1...Rc2
      • 2.Bd3#
    • 1...Rc3
      • 2.Sxc3#
    • 1...Bxa2
      • 2.Bd3#
    • 1...Bc2
      • 2.Sc3#
    • 1...Bd3
      • 2.Bxd3#
    • 1...Bc5
      • 2.Qxh4#
    • 1...Bf8
      • 2.Qxh4#
  • Tries
    • 1.Rxb4+?
      • 1...Rc4
        • 2.Sc3#
      • 1...Bxb4+!
    • 1.Qa8+?
      • 1...Rc6
        • 2.Sc3#
      • 1...d5!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qe5#
      • 1...Rxc3
        • 2.Sxc3#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Bd6
        • 2.Qa8#
      • 1...Bf6
        • 2.Qh7#
      • 1...e5
        • 2.Qxe5#
      • 1...d6
        • 2.Rxb4#
      • 1...f6
        • 2.Qxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • R(b);N_GUARD::S(B)
    • R(b);S_CUTB(a)::B(C)
    • R(b);N_GUARD::S(B),XR(b)
    • B(a);N_GUARD,XS(B)::B(C)
    • B(a);S_CUTR(b)::S(B)
    • B(a);N_GUARD::B(C),XB(a)
    • B(k);N_GUARD::QAR(H),XP(g)
  • Tries
    • Try
      • R(D);CHECK,XR(e)
      • Vars
        • R(b);P_SPINR(b)::S(B)
      • Refutation
        • B(k);CHECK,XR(D)
    • Try
      • Q(H);CHECK
      • Vars
        • R(b);P_SPINR(b)::S(B)
      • Refutation
        • P(j);P_SPINP(j)
  • Actual
    • B(G);
    • Threat
      • QAR1(H)
    • Vars
      • R(b);XB(G)::S(B),XR(b)
      • R(e);N_GUARD::QAR1(H),XR(e)
      • B(k);S_CUTP(j)::QAB(H)
      • B(k);S_CUTP(l)::QAB(H)
      • P(i);::QAR1(H),XP(i)
      • P(j);S_CUTB(k)::R(D),XR(e)
      • P(l);S_CUTB(k)::QAR(H),XP(g)
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