MESON Chess Problem Database

Problem Display
PID: 222670 (8/8/5bp1/3p2p1/3p2k1/3Kp2R/2N4B/4QB2 w - - 0 1)

Nageleisen, Henry

Cincinnati Commercial, 1883

8/8/5bp1/3p2p1/3p2k1/3Kp2R/2N4B/4QB2

#2

6 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sxd4?
      • threat
        • 2.Qg3#
        • 2.Qe2#
      • 1...Be5
        • 2.Qe2#
      • 1...e2
        • 2.Qg3#
        • 2.Qxe2#
      • 1...Bxd4!
    • 1.Be2+?
      • 1...Kxh3
        • 2.Qg3#
      • 1...Kf5!
    • 1.Qb4?
      • threat
        • 2.Sxe3#
      • 1...e2
        • 2.Se3#
      • 1...Kf5!
    • 1.Qxe3?
      • threat
        • 2.Qf3#
        • 2.Qe6#
      • 1...dxe3
        • 2.Sxe3#
      • 1...Be5
        • 2.Qf3#
      • 1...Kf5!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qc8#
      • 1...Kf5
        • 2.Qc8#
      • 1...dxc3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);::QAB(A)
      • Refutation
        • B(f);XS(C)
    • Try
      • B(B);CHECK
      • Vars
        • K(c);S_FLIGHT,XR(F)::QAR1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);P_PINP(b)
      • Threat
        • S(C),XP(a)
      • Vars
        • P(a);::S(C)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • Q(A);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);XQ(A)::S(C),XP(b)
        • B(f);::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • K(c);S_FLIGHT::QAB(A)
      • P(b);N_GUARD,XQ(A)::S(C),XP(a)
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