MESON Chess Problem Database

Problem Display
PID: 218562 (7Q/6N1/1KR2p2/4b3/4k3/1P2P2b/3PP3/8 w - - 0 1)

Anonymous

Cincinnati Commercial, 1882

(First published on Sat Jan 7 1882)

7Q/6N1/1KR2p2/4b3/4k3/1P2P2b/3PP3/8

#2

8 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Qh1#
    • 1...Be6
      • 2.Qh1#
    • 1...Bd7
      • 2.Qh1#
    • 1...Bc8
      • 2.Qh1#
  • Tries
    • 1.Qa8?
      • threat
        • 2.Rc1#
        • 2.Rc2#
        • 2.Rc3#
        • 2.Rc4#
        • 2.Rc5#
        • 2.Rd6#
        • 2.Re6#
        • 2.Rxf6#
        • 2.Rc7#
        • 2.Rc8#
      • 1...Bd4+
        • 2.Rc5#
      • 1...Kd5
        • 2.Re6#
        • 2.Rxf6#
      • 1...Ba1
        • 2.Rc5#
        • 2.Re6#
      • 1...Bb2
        • 2.Rc5#
        • 2.Re6#
      • 1...Bh2
        • 2.Rc5#
        • 2.Re6#
      • 1...Bc3
        • 2.Rc5#
        • 2.Re6#
      • 1...Bg3
        • 2.Rc5#
        • 2.Re6#
      • 1...Bf4
        • 2.Rc5#
        • 2.Re6#
      • 1...Bd6
        • 2.Rc5#
      • 1...Bb8
        • 2.Rc5#
        • 2.Re6#
      • 1...Be6
        • 2.Rc4#
        • 2.Rxe6#
      • 1...Bd7
        • 2.Rc4#
      • 1...Bc8
        • 2.Rc4#
        • 2.Rxc8#
      • 1...f5
        • 2.Rc1#
        • 2.Rc2#
        • 2.Rc3#
        • 2.Rc4#
        • 2.Rc5#
        • 2.Rd6#
        • 2.Re6#
        • 2.Rf6#
        • 2.Rg6#
        • 2.Rh6#
        • 2.Rc7#
        • 2.Rc8#
      • 1...Bc7+!
  • Keys
    • 1.Re6!
      • threat
        • 2.Qa8#
      • 1...Kd5
        • 2.Qa8#
      • 1...Bxe6
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(a);OGATE::QAB(H)
  • Tries
    • Try
      • Q(H);
      • Threat
        • DUALS(10)
      • Vars
        • B(c);CHECK::QAB(H)+R(F)
        • B(c);::QAB(H)+R(F)
        • B(a);::QAB(H)+R(F),DCHECK
      • Refutation
        • B(c);CHECK
  • Actual
    • R(F);P_PINB(c)
    • Threat
      • QAB(H)
    • Vars
      • K(b);N_SPINB(c),S_FLIGHT::QAB(H)
      • B(a);N_SPINB(c),OGATE,XR(F)::QAB(H)
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