MESON Chess Problem Database

Problem Display
PID: 162194 (3r4/4R3/8/8/1p6/8/1K1kb3/7Q w - - 0 1)

Thomas, Georg

Weekend, 1943

3r4/4R3/8/8/1p6/8/1K1kb3/7Q

#2

3 + 4

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Qc1#
    • 1...Bd3
      • 2.Qc1#
      • 2.Qe1#
  • Tries
    • 1.Rxe2+?
      • 1...Kd3
        • 2.Qe4#
      • 1...Kxe2!
    • 1.Qg2?
      • threat
        • 2.Qxe2#
      • 1...Kd1
        • 2.Qxe2#
      • 1...Ke1
        • 2.Qxe2#
      • 1...Kd3!
    • 1.Qh2?
      • threat
        • 2.Qxe2#
      • 1...Kd1
        • 2.Qxe2#
      • 1...Ke1
        • 2.Qxe2#
      • 1...Kd3!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qxe2#
      • 1...Kd1
        • 2.Qxe2#
      • 1...Ke1
        • 2.Qxe2#
      • 1...Bd1
        • 2.Qe3#
      • 1...Bf1
        • 2.Qc2#
      • 1...Bd3
        • 2.Qe1#
      • 1...Bf3
        • 2.Qc2#
      • 1...Bc4
        • 2.Qc2#
      • 1...Bg4
        • 2.Qc2#
      • 1...Bb5
        • 2.Qc2#
      • 1...Bh5
        • 2.Qc2#
      • 1...Ba6
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 1
  • Sets
    • R(d);SBLOCK::QAB1(A)
  • Tries
    • Try
      • R(C);CHECK,XB(b)
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT,XR(C)
    • Try
      • Q(A);P_PINB(b)
      • Threat
        • QAR1(A),XB(b)
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT::QAB1(A),XB(b)
        • K(a);S_FLIGHT::QAR1(A),XB(b)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT
    • Try
      • Q(A);P_PINB(b)
      • Threat
        • QAR1(A),XB(b)
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT::QAB1(A),XB(b)
        • K(a);S_FLIGHT::QAR1(A),XB(b)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XB(b)
    • Vars
      • K(a);P-FLIGHT::QAB1(A),XB(b)
      • K(a);P_SPINB(b),S_FLIGHT::QAR1(A),XB(b)
      • B(b);SBLOCK::QAB1(A)
      • B(b);::QAR1(A)
      • B(b);OGATE,SBLOCK::QAB1(A)
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