MESON Chess Problem Database

Problem Display
PID: 222699 (3R4/8/4Q3/3r4/1p2p3/1p1k4/1B1p4/3K4 w - - 0 1)

Shinkman, William Anthony

Cincinnati Commercial, 1884

3R4/8/4Q3/3r4/1p2p3/1p1k4/1B1p4/3K4

#2

4 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qxd5#
    • 1...Rd4
      • 2.Qxb3#
    • 1...Rd6
      • 2.Qxb3#
    • 1...Rd7
      • 2.Qxb3#
    • 1...Rxd8
      • 2.Qxb3#
    • 1...e3
      • 2.Qxd5#
  • Tries
    • 1.Rxd5+?
      • 1...Kc4
        • 2.Qxe4#
        • 2.Qc6#
      • 1...Ke3!
    • 1.Rd6?
      • 1...Kc4
        • 2.Qxd5#
      • 1...Rxd6
        • 2.Qxb3#
      • 1...Rd4
        • 2.Qxb3#
      • 1...e3
        • 2.Qxd5#
      • 1...Ke3!
    • 1.Rd7?
      • 1...Kc4
        • 2.Qxd5#
      • 1...Rxd7
        • 2.Qxb3#
      • 1...Rd4
        • 2.Qxb3#
      • 1...Rd6
        • 2.Qxb3#
      • 1...e3
        • 2.Qxd5#
      • 1...Ke3!
    • 1.Qg4?
      • threat
        • 2.Qe2#
      • 1...Ke3
        • 2.Qg3#
      • 1...e3
        • 2.Rxd5#
      • 1...Kc4!
    • 1.Qf7?
      • 1...Kc4
        • 2.Qxd5#
      • 1...Rxd8
        • 2.Qxb3#
      • 1...Rd4
        • 2.Qxb3#
      • 1...Rd6
        • 2.Qxb3#
      • 1...Rd7
        • 2.Qxb3#
      • 1...e3
        • 2.Qxd5#
      • 1...Ke3!
    • 1.Qd6?
      • 1...Ke3
        • 2.Qg3#
      • 1...Kc4
        • 2.Qxd5#
      • 1...Rd4
        • 2.Qxd4#
      • 1...e3
        • 2.Qxd5#
      • 1...Rxd6!
  • Keys
    • 1.Qg8!
      • 1...Ke3
        • 2.Qg3#
      • 1...Kc4
        • 2.Qxd5#
      • 1...Rxd8
        • 2.Qxb3#
      • 1...Rd4
        • 2.Qxb3#
      • 1...Rd6
        • 2.Qxb3#
      • 1...Rd7
        • 2.Qxb3#
      • 1...e3
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB1(C),XR(f)
    • R(f);OGATE::QAR2(C),XP(b)
    • R(f);N_SPINR(f),OGATE,XR(D)::QAR2(C),XP(b)
    • P(e);SBLOCK::QAR2(C),XR(f)
  • Tries
    • Try
      • R(D);CHECK,XR(f)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(e)
    • Try
      • R(D);
      • Vars
        • K(c);S_FLIGHT::QAB1(C),XR(f)
        • R(f);N_SPINR(f),OGATE,XR(D)::QAR2(C),XP(b)
        • R(f);OGATE::QAR2(C),XP(b)
        • P(e);SBLOCK::QAR2(C),XR(f)
      • Refutation
        • K(c);N_SPINR(f),P-FLIGHT,P_SPINP(e)
    • Try
      • R(D);
      • Vars
        • K(c);S_FLIGHT::QAB1(C),XR(f)
        • R(f);N_SPINR(f),OGATE,XR(D)::QAR2(C),XP(b)
        • R(f);OGATE::QAR2(C),XP(b)
        • P(e);SBLOCK::QAR2(C),XR(f)
      • Refutation
        • K(c);N_SPINR(f),P-FLIGHT,P_SPINP(e)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(c);N_SPINR(f),P-FLIGHT::QAR2(C)
        • P(e);SBLOCK::R(D),XR(f)
      • Refutation
        • K(c);N_SPINR(f),P_SPINP(e),S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(c);S_FLIGHT::QAB1(C),XR(f)
        • R(f);N_SPINR(f),OGATE,XR(D)::QAR2(C),XP(b)
        • R(f);OGATE::QAR2(C),XP(b)
        • P(e);SBLOCK::QAR2(C),XR(f)
      • Refutation
        • K(c);N_SPINR(f),P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(c);N_SPINR(f),P-FLIGHT::QAR2(C)
        • K(c);N_SPINR(f),S_FLIGHT::QAB1(C),XR(f)
        • R(f);OGATE::QAR1(C),XR(f)
        • P(e);SBLOCK::QAR2(C),XR(f)
      • Refutation
        • R(f);XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(c);N_SPINR(f),P-FLIGHT::QAR2(C)
      • K(c);S_FLIGHT::QAB1(C),XR(f)
      • R(f);N_SPINR(f),OGATE,XR(D)::QAR2(C),XP(b)
      • R(f);OGATE::QAR2(C),XP(b)
      • P(e);SBLOCK::QAR2(C),XR(f)
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