MESON Chess Problem Database

Problem Display
PID: 82496 (2Nkr2n/4R1pK/2bp4/1p3Q2/8/8/8/8 w - - 0 1)

Havel, Miroslav

Ruch, 1947

2Nkr2n/4R1pK/2bp4/1p3Q2/8/8/8/8

#2

4 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Qd7#
    • 1...Bg2
      • 2.Qd7#
    • 1...Bf3
      • 2.Qd7#
    • 1...Bd5
      • 2.Qd7#
    • 1...Bb7
      • 2.Qd7#
    • 1...Bd7
      • 2.Qxd7#
    • 1...Ba8
      • 2.Qd7#
  • Keys
    • 1.Sa7!
      • threat
        • 2.Sxc6#
      • 1...Kxe7
        • 2.Sxc6#
      • 1...Rxe7
        • 2.Qc8#
      • 1...Bd7
        • 2.Rxd7#
        • 2.Qxd7#
      • 1...Bh1
        • 2.Rd7#
        • 2.Qd7#
      • 1...Bg2
        • 2.Rd7#
        • 2.Qd7#
      • 1...Bf3
        • 2.Rd7#
        • 2.Qd7#
      • 1...Be4
        • 2.Rd7#
      • 1...Bd5
        • 2.Rd7#
        • 2.Qd7#
      • 1...Bb7
        • 2.Rd7#
        • 2.Qd7#
      • 1...Ba8
        • 2.Rd7#
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • B(b);N_GUARD::QAR1(A)
    • B(b);N_GUARD::QAR1(A),XB(b)
  • Actual
    • S(D);
    • Threat
      • S(D),XB(b)
    • Vars
      • K(e);S_FLIGHT,XR(B)::S(D),XB(b)
      • R(f);SBLOCK,XR(B)::QAR1(A)
      • B(b);N_GUARD,P_PINQ(A)::R1(B)
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