MESON Chess Problem Database

Problem Display
PID: 15824 (8/2r5/3N4/q4N2/pP2pP2/2k1BB1R/Q1P4K/8 w - - 0 1)

Gvozdjak, Peter

1st Comm., Hartong MT, 1988

8/2r5/3N4/q4N2/pP2pP2/2k1BB1R/Q1P4K/8

#2

10 + 5

721 Variantim 1990
5395 Schach fur Nussknacker 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb4
      • 2.Qb2#
    • 1...a3
      • 2.Qb3#
  • Tries
    • 1.Bd4+?
      • 1...Kxb4
        • 2.Qb2#
      • 1...Kd2!
    • 1.Bxe4?
      • threat
        • 2.Qa3#
      • 1...Kxb4
        • 2.Qb2#
      • 1...Qxb4
        • 2.Bc1#
      • 1...a3
        • 2.Qb3#
      • 1...Qd5!
    • 1.Qa1+?
      • 1...Kxb4
        • 2.Qb2#
      • 1...Kxc2!
  • Keys
    • 1.Bc1!
      • threat
        • 2.Qb2#
      • 1...Kxb4
        • 2.Qa3#
      • 1...Qxb4
        • 2.Bxe4#
      • 1...a3
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT,XP(G)::QAR2(A)
    • P(b);N_GUARD::QAR1(A)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);XP(c)
      • Threat
        • QAR2(A)
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAR2(A)
        • Q(d);SBLOCK,XP(G)::R(F)+B(D)
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • Q(d);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
  • Actual
    • B(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT,XP(G)::QAB1(A)
      • Q(d);SBLOCK,XP(G)::R(F)+B(E),XP(c)
      • P(b);N_GUARD::QAR1(A)
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