MESON Chess Problem Database

Problem Display
PID: 223387 (7K/8/3b1kp1/3R2N1/1p2Pn2/1P6/3Q4/8 w - - 0 1)

Fritsche, Josef

Wiener Hausfrauen-Zeitung, 1885

7K/8/3b1kp1/3R2N1/1p2Pn2/1P6/3Q4/8

#2

6 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be7
      • 2.Qxf4#
      • 2.Qb2#
      • 2.Qd4#
  • Tries
    • 1.Qb2+?
      • 1...Be5
        • 2.Qxe5#
      • 1...Ke7!
    • 1.Qd4+?
      • 1...Be5
        • 2.Qxe5#
      • 1...Ke7!
  • Keys
    • 1.Re5!
      • threat
        • 2.Qxf4#
      • 1...Kxe5
        • 2.Qb2#
      • 1...Bxe5
        • 2.Qd8#
      • 1...Se6
        • 2.Rxe6#
      • 1...Se2
        • 2.Re6#
        • 2.Qxd6#
      • 1...Sg2
        • 2.Re6#
        • 2.Qxd6#
      • 1...Sd3
        • 2.Re6#
      • 1...Sh3
        • 2.Re6#
        • 2.Qxd6#
      • 1...Sd5
        • 2.Re6#
      • 1...Sh5
        • 2.Re6#
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAB1(A),XB(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAB1(A),XB(c)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(D);
    • Threat
      • QAR2(A),XS(b)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(D)::QAB(A)
      • B(c);OGATE,SBLOCK,XR(D)::QAB(A)
      • S(b);N_GUARD::R1(D),XS(b)
      • S(b);N_GUARD::R1(D)
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