MESON Chess Problem Database

Problem Display
PID: 249604 (8/8/3BP3/pQN1Pp2/P4p2/2k2p2/pRB2K2/b7 w - - 0 1)

Burmeister, Albert M

Deutsche Schachzeitung, 1892

8/8/3BP3/pQN1Pp2/P4p2/2k2p2/pRB2K2/b7

#2

9 + 7

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd3#
  • Tries
    • 1.Sb3?
      • 1...Bxb2
        • 2.Qd3#
        • 2.Qc6#
        • 2.Qc5#
      • 1...Kxb2!
    • 1.Se4+?
      • 1...Kd4
        • 2.Qd3#
        • 2.Qc5#
      • 1...fxe4!
    • 1.Sa6?
      • 1...Kd4
        • 2.Qd3#
        • 2.Qc5#
      • 1...Bxb2
        • 2.Qd3#
      • 1...Kd2!
    • 1.Sb7?
      • 1...Kd4
        • 2.Qd3#
        • 2.Qc5#
      • 1...Bxb2
        • 2.Qd3#
      • 1...Kd2!
    • 1.Sd7?
      • 1...Kd4
        • 2.Qd3#
        • 2.Qc5#
      • 1...Bxb2
        • 2.Qd3#
      • 1...Kd2!
    • 1.Bd1?
      • 1...Kd4
        • 2.Qd3#
      • 1...Bxb2!
    • 1.Bd3?
      • 1...Kd4
        • 2.Qc4#
      • 1...Bxb2!
    • 1.Bxf5?
      • 1...Kd4
        • 2.Qd3#
      • 1...Bxb2!
    • 1.Qc4+?
      • 1...Kxb2
        • 2.Sd3#
      • 1...Kd2
        • 2.Sb3#
      • 1...Kxc4!
    • 1.Qb3+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kd2!
  • Keys
    • 1.Qc6!
      • 1...Kxb2
        • 2.Sd3#
      • 1...Kd2
        • 2.Sb3#
      • 1...Kc4
        • 2.Sb3#
      • 1...Kd4
        • 2.Sb3#
      • 1...Bxb2
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAR1(E)
  • Tries
    • Try
      • S(F);
      • Refutation
        • K(c);S_FLIGHT,XR(A)
    • Try
      • S(F);CHECK
      • Refutation
        • P(g);XS(F)
    • Try
      • S(F);
      • Vars
        • B(a);SBLOCK,XR(A)::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);
      • Vars
        • B(a);SBLOCK,XR(A)::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);
      • Vars
        • B(a);SBLOCK,XR(A)::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
      • Refutation
        • B(a);XR(A)
    • Try
      • B(B);
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
      • Refutation
        • B(a);XR(A)
    • Try
      • B(B);XP(g)
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
      • Refutation
        • B(a);XR(A)
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);S_FLIGHT,XR(A)::S(F)
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • K(c);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(c);S_FLIGHT,XR(A)::S(F)
      • K(c);S_FLIGHT::S(F)
      • K(c);P-FLIGHT::QAR(E)+S(F)
      • B(a);SBLOCK,XR(A)::QAR(E)+S(F)
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