MESON Chess Problem Database

Problem Display
PID: 218487 (3r3R/8/n1Nb1k1N/Q2K3P/3R1P2/1pBp3n/6r1/3q3b w - - 0 1)

Meyer, Heinrich Friedrich Ludwig

A Complete Guide to Chess (Meyer), 1882

3r3R/8/n1Nb1k1N/Q2K3P/3R1P2/1pBp3n/6r1/3q3b

#2

9 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd8+?
      • 1...Be7
        • 2.Rxd3#
        • 2.Ra4#
        • 2.Rb4#
        • 2.Rc4#
        • 2.Re4#
        • 2.Qxe7#
      • 1...Kg7!
  • Keys
    • 1.Kc4!
      • threat
        • 2.Rxd6#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kg7
        • 2.Rxd6#
      • 1...Bxf4
        • 2.Rd6#
      • 1...Ba3
        • 2.Rd6#
        • 2.Qe5#
      • 1...Bb4
        • 2.Rd6#
        • 2.Qe5#
      • 1...Bc5
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bc7
        • 2.Rd6#
      • 1...Be7
        • 2.Rd6#
        • 2.Qe5#
      • 1...Bb8
        • 2.Rd6#
      • 1...Bf8
        • 2.Rd6#
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK,XR(j)
      • Refutation
        • K(i);S_FLIGHT
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • B(A)+R(B),DCHECK,XB(h)
    • Vars
      • K(i);P-FLIGHT::QAB1(D)
      • K(i);S_FLIGHT::B(A)+R(B),XB(h)
      • B(h);XP(C)::B(A)+R(B),DCHECK
      • B(h);::B(A)+R(B),DCHECK
      • B(h);N_GUARD::QAB1(D),XB(h)
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