MESON Chess Problem Database

Problem Display
PID: 139776 (8/6B1/8/R7/P4P2/1Q1Pk3/6B1/3K4 w - - 0 1)

Plachutta, Josef

Schweizerische Schachzeitung, 1860

8/6B1/8/R7/P4P2/1Q1Pk3/6B1/3K4

#2

8 + 1

6490 yacpdb 2011
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rg5?
      • 1...Kf2
        • 2.Bd4#
        • 2.Qb6#
      • 1...Kxf4!
    • 1.Qa2?
      • threat
        • 2.Qd2#
      • 1...Kxd3
        • 2.Qb3#
        • 2.Qe2#
      • 1...Kxf4!
    • 1.Qd5?
      • threat
        • 2.Qf3#
        • 2.Qd4#
      • 1...Kxf4
        • 2.Qf3#
        • 2.Qg5#
      • 1...Kf2!
    • 1.Qf7?
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kf2!
    • 1.Qb2?
      • threat
        • 2.Qd4#
        • 2.Qd2#
      • 1...Kxd3
        • 2.Qc3#
        • 2.Qd4#
        • 2.Qe2#
        • 2.Qb3#
      • 1...Kxf4!
    • 1.Qb4?
      • threat
        • 2.Qd2#
        • 2.Qd4#
      • 1...Kxd3
        • 2.Qc3#
        • 2.Qb3#
        • 2.Qd4#
        • 2.Qe4#
      • 1...Kf2!
    • 1.Qb5?
      • 1...Kxf4
        • 2.Qg5#
      • 1...Kf2!
    • 1.Qb6+?
      • 1...Kxd3
        • 2.Qd4#
        • 2.Qb3#
      • 1...Kxf4!
    • 1.Qb7?
      • threat
        • 2.Qf3#
      • 1...Kxd3
        • 2.Qe4#
        • 2.Qb3#
      • 1...Kxf4
        • 2.Qf3#
      • 1...Kf2!
    • 1.Qb8?
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kf2!
    • 1.d4+?
      • 1...Kxf4
        • 2.Qf3#
      • 1...Kf2!
  • Keys
    • 1.Qg8!
      • 1...Kf2
        • 2.Bd4#
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kxf4
        • 2.Bh6#

This anticipates 64172(1880)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(F)::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT,XP(F)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(D);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XP(F)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::B(H)
      • K(a);OGATEB,P-FLIGHT,XP(D)::QAR2(C)
      • K(a);OGATEB,S_FLIGHT,XP(F)::B(H)
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