MESON Chess Problem Database

Problem Display
PID: 207103 (8/5B2/3B3R/3r4/2k5/1R2n3/2p4Q/2K5 w - - 0 1)

Healey, Frank

A Collection of Two Hundred Chess Problems (Healey), 1866

8/5B2/3B3R/3r4/2k5/1R2n3/2p4Q/2K5

#2

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qf4#
  • Tries
    • 1.Rxe3?
      • 1...Kd4
        • 2.Qf4#
      • 1...Kb5!
    • 1.Rb4+?
      • 1...Kd3
        • 2.Qd2#
      • 1...Kc3!
    • 1.Qg3?
      • 1...Kd4
        • 2.Qf4#
      • 1...Sd1
        • 2.Rb4#
        • 2.Rh4#
        • 2.Qd3#
      • 1...Sf1
        • 2.Rb4#
        • 2.Rh4#
        • 2.Qc3#
        • 2.Qd3#
      • 1...Sg2
        • 2.Rb4#
        • 2.Qc3#
        • 2.Qd3#
      • 1...Sg4
        • 2.Rb4#
        • 2.Qc3#
        • 2.Qd3#
      • 1...Sf5
        • 2.Rb4#
        • 2.Qc3#
        • 2.Qd3#
      • 1...Kxb3!
    • 1.Qe5?
      • threat
        • 2.Qc3#
      • 1...Sd1
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Kxb3!
    • 1.Qxc2+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Sxc2!
    • 1.Qd2?
      • threat
        • 2.Rb4#
        • 2.Qc3#
        • 2.Qb4#
        • 2.Qd3#
      • 1...Sd1
        • 2.Bxd5#
        • 2.Rb4#
        • 2.Qb4#
        • 2.Qd3#
        • 2.Qxd5#
      • 1...Kxb3!
    • 1.Qe2+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kxb3!
  • Keys
    • 1.Rh3!
      • 1...Kxb3
        • 2.Qxc2#
      • 1...Kd4
        • 2.Qf4#
      • 1...Sd1
        • 2.Rb4#
        • 2.Qf4#
      • 1...Sf1
        • 2.Rb4#
        • 2.Qf4#
      • 1...Sg2
        • 2.Rb4#
      • 1...Sg4
        • 2.Rb4#
        • 2.Qf4#
      • 1...Sf5
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINR(d),P-FLIGHT::QAR2(B)
  • Tries
    • Try
      • R(C);XS(b)
      • Vars
        • K(c);N_SPINR(d),P-FLIGHT::QAR2(B)
      • Refutation
        • K(c);N_SPINR(d),S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(c);N_SPINR(d),S_FLIGHT::QAR1(B)
      • Refutation
        • K(c);N_SPINR(d),P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(c);N_SPINR(d),P-FLIGHT::QAR2(B)
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT,XR(C)
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • Q(B);CHECK,XP(a)
      • Vars
        • K(c);N_SPINR(d),P-FLIGHT::QAR1(B)
      • Refutation
        • S(b);XQ(B)
    • Try
      • Q(B);
      • Threat
        • DUALS(4)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_SPINR(d),P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
  • Actual
    • R(E);
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT,XR(C)::QAB1(B),XP(a)
      • K(c);N_SPINR(d),P-FLIGHT::QAR2(B)
      • S(b);::R1(C)
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