MESON Chess Problem Database

Problem Display
PID: 228043 (2K3Q1/1p3P1r/bP2p3/2B1kq2/3pP3/2bp4/1n2RR2/1Br1N3 w - - 0 1)

Baumgarten, Ernst

Freie Presse, 1974

2K3Q1/1p3P1r/bP2p3/2B1kq2/3pP3/2bp4/1n2RR2/1Br1N3

#2

10 + 11

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.e5#
    • 1...Qxe4
      • 2.Qg5#
    • 1...Qg5
      • 2.Qxg5#
    • 1...Qh5
      • 2.Qg3#
  • Tries
    • 1.Bd6+?
      • 1...Kf6
        • 2.e5#
      • 1...Kxd6!
    • 1.Qg3+?
      • 1...Qf4
        • 2.Qxf4#
      • 1...Kf6!
    • 1.Qg7+?
      • 1...Qf6
        • 2.Qxf6#
      • 1...Rxg7!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Bd6#
      • 1...Qxe4
        • 2.Qg5#
        • 2.Qd6#
      • 1...Bxe1
        • 2.Qxd4#
      • 1...Bd2
        • 2.Qxd4#
      • 1...Bb4
        • 2.Qxd4#
      • 1...Ba5
        • 2.Qxd4#
      • 1...Sc4
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • K(f);OGATE,P_SPINQ(g),S_FLIGHT::P(E)
    • Q(g);OGATEB,P_SPINQ(g),XP(E)::QAR2(J)
    • Q(g);OGATEB::QAR2(J),XQ(g)
    • Q(g);N_GUARD::QAB(J)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(f);OGATE,P_SPINQ(g),S_FLIGHT::P(E)
      • Refutation
        • K(f);S_FLIGHT,XB(F)
    • Try
      • Q(J);CHECK
      • Vars
        • Q(g);N_GUARD,P_SPINQ(g)::QAB1(J),XQ(g)
      • Refutation
        • K(f);P_SPINQ(g),S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • Q(g);N_GUARD,P_SPINQ(g)::QAB1(J),XQ(g)
      • Refutation
        • R(k);XQ(J)
  • Actual
    • Q(J);
    • Threat
      • B(F)
    • Vars
      • B(c);N_GUARD,P_PINB(F),XS(B)::QAB1(J),XP(e)
      • B(c);N_GUARD,P_PINB(F)::QAB1(J),XP(e)
      • S(b);N_GUARD,S_CUTB(h)::S(B),XP(d)
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