MESON Chess Problem Database

Problem Display
PID: 198313 (2Q5/5p1K/5Rp1/5Pk1/1R6/3P4/5B2/8 w - - 0 1)

Mitchell, David Andrew

Mitchells Guide to the Game of Chess, 1920

2Q5/5p1K/5Rp1/5Pk1/1R6/3P4/5B2/8

#2

7 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...gxf5
      • 2.Rxf5#
      • 2.Qxf5#
  • Tries
    • 1.Kg7?
      • 1...gxf5
        • 2.Rxf5#
        • 2.Qxf5#
      • 1...Kh5!
    • 1.Rh4?
      • 1...gxf5
        • 2.Rxf5#
        • 2.Qxf5#
      • 1...Kxf6!
    • 1.Rxg6+?
      • 1...Kh5
        • 2.Rh4#
      • 1...fxg6!
    • 1.Rxf7?
      • 1...gxf5
        • 2.Rxf5#
        • 2.Qxf5#
      • 1...Kh5!
    • 1.Qc1+?
      • 1...Kh5
        • 2.Rh4#
        • 2.Qh6#
      • 1...Kxf6!
    • 1.Qc4?
      • threat
        • 2.Qh4#
      • 1...Kh5
        • 2.Qg4#
        • 2.Qh4#
      • 1...Kxf6!
    • 1.Qc5?
      • 1...Kh5
        • 2.fxg6#
      • 1...gxf5
        • 2.Rxf5#
        • 2.Qxf5#
      • 1...Kxf6!
    • 1.Qf8?
      • 1...Kh5
        • 2.Qh6#
      • 1...gxf5
        • 2.Qh6#
      • 1...Kxf6!
  • Keys
    • 1.Rb5!
      • 1...Kf4
        • 2.fxg6#
      • 1...Kg4
        • 2.fxg6#
      • 1...Kh5
        • 2.fxg6#
      • 1...Kxf6
        • 2.Qd8#
      • 1...gxf5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • R(E);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT::R1(C)
      • Refutation
        • P(c);XR(E)
    • Try
      • R(E);XP(c)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(G);CHECK
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Vars
        • K(a);P-FLIGHT::QAR(G)+P(D),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
        • P(b);XP(D)::QAB1(G)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XR(E)
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT::R(E)+P(D),XP(b)
      • K(a);P-FLIGHT::QAB(G)+P(D),XP(b)
      • K(a);P-FLIGHT::R(C)+P(D),XP(b)
      • K(a);OGATEB,S_FLIGHT,XR(E)::QAB(G)
      • P(b);OGATE,P_SPINP(b),XP(D)::QAR1(G),XP(b)
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