MESON Chess Problem Database

Problem Display
PID: 101470 (5B2/4q3/4r3/1R2P3/2P2Q2/kP6/1N6/1K6 w - - 0 1)

Weenink, Henri Gerard Maria

Good Companions (February Meredith Ty.), 1917

5B2/4q3/4r3/1R2P3/2P2Q2/kP6/1N6/1K6

#2

8 + 3

803 De Tijd 1929
16055 HGM Weenink (Euwe/Niemeijer/Rueb/Trotsenburg) 1932
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Bxc5#
  • Tries
    • 1.Bxe7+?
      • 1...Rd6
        • 2.Bxd6#
      • 1...Rxe7!
    • 1.Qd2?
      • threat
        • 2.Qa5#
      • 1...Qb4
        • 2.Qxb4#
      • 1...Ra6!
    • 1.c5?
      • threat
        • 2.Sc4#
        • 2.Qa4#
        • 2.Qb4#
      • 1...Qxc5
        • 2.Sc4#
        • 2.Bxc5#
        • 2.Qa4#
      • 1...Qh4
        • 2.Sc4#
      • 1...Qa7
        • 2.Sc4#
        • 2.Qb4#
      • 1...Ra6
        • 2.Sc4#
        • 2.Qb4#
      • 1...Qh7+!
  • Keys
    • 1.Qe3!
      • threat
        • 2.b4#
      • 1...Rxe5
        • 2.Qa7#
      • 1...Qb4
        • 2.Bxb4#
        • 2.Ra5#
      • 1...Qc5
        • 2.Bxc5#
        • 2.Qxc5#
      • 1...Qd6
        • 2.Qa7#
      • 1...Rd6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(c);OGATE::B(H),XQ(c)
  • Tries
    • Try
      • B(H);CHECK,XQ(c)
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::B(H),XR(b)
      • Refutation
        • R(b);XB(H)
    • Try
      • Q(E);
      • Threat
        • QAR2(E)
      • Vars
        • Q(c);N_GUARD::QAB1(E),XQ(c)
      • Refutation
        • R(b);
    • Try
      • P(D);N_PINQ(c)
      • Threat
        • DUALS(3)
      • Vars
        • Q(c);::S(B)
      • Refutation
        • Q(c);CHECK
  • Actual
    • Q(E);
    • Threat
      • QAR(E)+P(C)
    • Vars
      • R(b);N_GUARD,XP(G)::QAR(E)
      • Q(c);S_CUTR(b)::QAR(E)
      • R(b);N_SPINQ(c),S_CUTQ(c)::QAB(E)
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