MESON Chess Problem Database

Problem Display
PID: 97914 (8/3B4/p2p1P2/P1pkp3/3pN3/2BQP3/3K4/3R1N2 w - - 0 1)

Haring, Jacobus

Problemas, 1980

8/3B4/p2p1P2/P1pkp3/3pN3/2BQP3/3K4/3R1N2

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • 1...dxc3+
        • 2.Kxc3#
      • 1...dxe3+
        • 2.Sxe3#
      • 1...Kc4
        • 2.Qa2#
      • 1...d3
        • 2.Qxd3#
      • 1...c4!
    • 1.Qe2?
      • 1...dxc3+
        • 2.Sxc3#
      • 1...dxe3+
        • 2.Kxe3#
      • 1...Kxe4
        • 2.Qg2#
      • 1...d3
        • 2.Qxd3#
      • 1...c4!
    • 1.Qxa6?
      • 1...dxc3+
        • 2.Sxc3#
      • 1...dxe3+
        • 2.Kxe3#
      • 1...c4
        • 2.Qb7#
        • 2.Qc6#
        • 2.Qa8#
      • 1...d3
        • 2.Qxd3#
      • 1...Kxe4!
    • 1.exd4?
      • threat
        • 2.Se3#
        • 2.dxc5#
        • 2.dxe5#
      • 1...cxd4
        • 2.Se3#
      • 1...c4
        • 2.Se3#
      • 1...exd4!
  • Keys
    • 1.Qb1!
      • 1...dxc3+
        • 2.Kxc3#
      • 1...dxe3+
        • 2.Sxe3#
      • 1...Kc4
        • 2.Qa2#
      • 1...d3
        • 2.Qxd3#
      • 1...c4
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);N_PINP(a)
      • Vars
        • P(a);CHECK,XB(D)::R(A)+K(C),XP(a)
        • P(a);CHECK,XP(F)::S(B),XP(a)
        • K(c);S_FLIGHT::QAB(E)
        • P(a);OGATEB::QAR2(E),XP(a)
      • Refutation
        • P(b);
    • Try
      • Q(E);N_PINP(a)
      • Vars
        • P(a);CHECK,XB(D)::S(G),XP(a)
        • P(a);CHECK,XP(F)::R(A)+K(C),XP(a)
        • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(E)
        • P(a);OGATEB::QAR2(E),XP(a)
      • Refutation
        • P(b);
    • Try
      • Q(E);N_PINP(a),XP(e)
      • Vars
        • P(a);CHECK,XB(D)::S(G),XP(a)
        • P(a);CHECK,XP(F)::R(A)+K(C),XP(a)
        • P(a);OGATEB::QAR2(E),XP(a)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • P(F);XP(a)
      • Threat
        • DUALS(3)
      • Vars
        • P(b);P_SPINP(b),XP(F)::S(B)
        • P(b);::S(B)
      • Refutation
        • P(d);P_SPINP(d),XP(F)
  • Actual
    • Q(E);N_PINP(a)
    • Vars
      • P(a);CHECK,XB(D)::R(A)+K(C),XP(a)
      • P(a);CHECK,XP(F)::S(B),XP(a)
      • K(c);S_FLIGHT::QAB(E)
      • P(a);OGATEB::QAR2(E),XP(a)
      • P(b);SBLOCK::QAB(E)
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