MESON Chess Problem Database

Problem Display
PID: 77292 (6Q1/3B1K2/r3R3/3k4/4N3/3b1N2/6pb/8 w - - 0 1)

Holladay, Edgar Dinwiddie

diagrammes, 1975

6Q1/3B1K2/r3R3/3k4/4N3/3b1N2/6pb/8

#2

6 + 5

6232 Holladay Chess Problems 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Ke7?
      • threat
        • 2.Re5#
      • 1...Rxe6+
        • 2.Qxe6#
      • 1...Kc4
        • 2.Rb6#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bd6+!
    • 1.Ke8?
      • threat
        • 2.Re5#
      • 1...Rxe6+
        • 2.Qxe6#
      • 1...Kc4
        • 2.Rb6#
      • 1...Bxe4
        • 2.Rc6#
      • 1...Be5
        • 2.Rxe5#
      • 1...Ra8+!
    • 1.Qg5+?
      • 1...Kc4
        • 2.Qb5#
      • 1...Be5!
  • Keys
    • 1.Kf8!
      • threat
        • 2.Re5#
      • 1...Ra8+
        • 2.Re8#
      • 1...Bd6+
        • 2.Re7#
      • 1...Kc4
        • 2.Rb6#
      • 1...Rxe6
        • 2.Qxe6#
      • 1...Bxe4
        • 2.Rc6#
      • 1...Be5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAB(F)+R(C),DCHECK
      • Vars
        • R(e);CHECK,OGATE,P_SPINR(e),XR(C)::QAB1(F),XR(e)
        • K(d);S_FLIGHT::QAB(F)+R(C)
        • B(b);::QAB(F)+R(C),DCHECK,XB(b)
      • Refutation
        • B(b);CHECK
    • Try
      • K(E);S_FLIGHT
      • Threat
        • QAB(F)+R(C),DCHECK
      • Vars
        • R(e);CHECK,OGATE,P_SPINR(e),XR(C)::QAB1(F),XR(e)
        • K(d);S_FLIGHT::QAB(F)+R(C)
        • B(c);SBLOCK,XS(B)::QAB(F)+R(C)
        • B(b);::QAB(F)+R(C),DCHECK,XB(b)
      • Refutation
        • R(e);CHECK
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAB1(F)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • QAB(F)+R(C),DCHECK
    • Vars
      • R(e);CHECK,N_GUARD::QAB(F)+R(C)
      • B(b);CHECK,S_CUTR(e)::QAB(F)+R(C)
      • K(d);S_FLIGHT::QAB(F)+R(C)
      • R(e);OGATE,P_SPINR(e),XR(C)::QAB1(F),XR(e)
      • B(c);SBLOCK,XS(B)::QAB(F)+R(C)
      • B(b);::QAB(F)+R(C),DCHECK,XB(b)
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