MESON Chess Problem Database

Problem Display
PID: 196909 (8/1p2bQ1R/3kP3/Nr1P1P1r/8/2n2P1p/3R4/6BK w - - 0 1)

Fritsch, Karl

Deutsche Schachzeitung, 1919

8/1p2bQ1R/3kP3/Nr1P1P1r/8/2n2P1p/3R4/6BK

#2

10 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Bh2#
    • 1...Rc5
      • 2.Bh2#
    • 1...Bh4
      • 2.Sc4#
      • 2.Qc7#
    • 1...Bg5
      • 2.Sc4#
      • 2.Qc7#
    • 1...Bf6
      • 2.Sc4#
      • 2.Qc7#
    • 1...Bd8
      • 2.Sc4#
    • 1...Bf8
      • 2.Sc4#
      • 2.Qc7#
  • Tries
    • 1.Qe8?
      • threat
        • 2.Qb8#
      • 1...Kc7
        • 2.d6#
      • 1...Rc5
        • 2.Bh2#
      • 1...Bd8
        • 2.Sc4#
      • 1...Ke5!
    • 1.Qg8?
      • threat
        • 2.Qg3#
        • 2.Qb8#
      • 1...Kc7
        • 2.d6#
      • 1...Rxf5
        • 2.Qb8#
      • 1...Rb4
        • 2.Qb8#
      • 1...Rc5
        • 2.Bh2#
        • 2.Qg3#
      • 1...Rh4
        • 2.Qb8#
      • 1...Rg5
        • 2.Qb8#
      • 1...Bh4
        • 2.Sc4#
        • 2.Qb8#
      • 1...Bg5
        • 2.Sc4#
        • 2.Qb8#
      • 1...Bf6
        • 2.Sc4#
        • 2.Qb8#
      • 1...Bd8
        • 2.Sc4#
        • 2.Qg3#
      • 1...Bf8
        • 2.Sc4#
        • 2.Qg3#
      • 1...Se2
        • 2.Qb8#
      • 1...Se4
        • 2.Qb8#
      • 1...Ke5!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qb8#
      • 1...Ke5
        • 2.Bh2#
      • 1...Kc7
        • 2.d6#
      • 1...Bxf8
        • 2.Sc4#
      • 1...Rc5
        • 2.Bh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(e);S_FLIGHT::B(A)
    • R(c);SBLOCK::B(A)
    • B(g);::S(E)
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAB(I)
      • Vars
        • K(e);OGATE,P_SPINB(g),S_FLIGHT::P(F)
        • R(c);SBLOCK::B(A)
        • B(g);::S(E)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • K(e);OGATE,P_SPINB(g),S_FLIGHT::P(F)
        • R(d);XP(G)::QAB(I)
        • R(c);::QAB(I)
        • R(d);::QAB(I)
        • S(a);::QAB(I)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • Q(I);P_PINB(g)
    • Threat
      • QAB(I)
    • Vars
      • K(e);N_SPINB(g),S_FLIGHT::B(A)
      • K(e);OGATE,S_FLIGHT::P(F)
      • B(g);N_SPINB(g),XQ(I)::S(E)
      • R(c);SBLOCK::B(A)
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