MESON Chess Problem Database

Problem Display
PID: 7051 (b7/1Br5/2rP3R/1p1k4/8/nPp1QpN1/p7/B1K2N2 w - - 0 1)

Groeneveld, Cornelis

1st HM., Bakony oszlop-98, 1998

b7/1Br5/2rP3R/1p1k4/8/nPp1QpN1/p7/B1K2N2

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...c2
      • 2.Qd4#
      • 2.Qg5#
      • 2.Qe5#
  • Tries
    • 1.Se2?
      • threat
        • 2.Sxc3#
        • 2.Sf4#
        • 2.Qd4#
      • 1...Rxb7
        • 2.Sf4#
        • 2.Qd4#
      • 1...Bxb7
        • 2.Sf4#
        • 2.Qd4#
      • 1...Rf7
        • 2.Sxc3#
        • 2.Qd4#
      • 1...Sb1
        • 2.Sf4#
        • 2.Qd4#
      • 1...Sc2
        • 2.Sxc3#
        • 2.Sf4#
      • 1...c2
        • 2.Sc3#
        • 2.Sf4#
        • 2.Qd4#
        • 2.Qe5#
      • 1...b4
        • 2.Sf4#
        • 2.Qd4#
      • 1...fxe2!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kc5!
    • 1.b4?
      • threat
        • 2.Qc5#
        • 2.Qe4#
      • 1...Rxb7
        • 2.Qe4#
      • 1...Bxb7
        • 2.Qe4#
      • 1...Re7
        • 2.Qc5#
      • 1...Kc4!
  • Keys
    • 1.Qxc3!
      • threat
        • 2.Se3#
      • 1...Sc4
        • 2.Qd4#
      • 1...Re7
        • 2.Qxc6#
      • 1...Sc2
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(3)
      • Refutation
        • P(d);XS(F)
    • Try
      • Q(E);CHECK
      • Vars
        • K(f);N_SPINR(g),P-FLIGHT,P_SPINP(c)::QAR1(E)
      • Refutation
        • K(f);N_SPINR(g),P-FLIGHT
    • Try
      • P(D);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);N_SPINR(g),XB(I)::QAB1(E)
        • B(i);N_SPINR(g),XB(I)::QAB1(E)
        • R(h);::QAR1(E)
      • Refutation
        • K(f);N_SPINR(g),S_FLIGHT
  • Actual
    • Q(E);P_SPINQ(E),XP(c)
    • Threat
      • S(C)
    • Vars
      • S(b);N_PINQ(E)::QAR1(E)
      • R(h);N_GUARD::QAB1(E),XR(g)
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