MESON Chess Problem Database

Problem Display
PID: 22902 (8/5Qp1/3K2p1/B1p3P1/P2kp3/3b4/3R4/8 w - - 0 1)

Shinkman, William Anthony

Philadelphia Chess Record, 1874

8/5Qp1/3K2p1/B1p3P1/P2kp3/3b4/3R4/8

#2

6 + 6

2638 White to Play 1913
3925 The Golden Argosy 1929
5063 Spectacular Chess Problems 1965
1542 Chess Life & Review 1970
3310 2345 Chess Problems 1997
133 The Problemist Supplement 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qf2#
    • 1...e3
      • 2.Qd5#
      • 2.Qf4#
    • 1...c4
      • 2.Qa7#
  • Tries
    • 1.Kc6?
      • 1...Ke3
        • 2.Qf2#
      • 1...Ke5
        • 2.Bc3#
      • 1...e3
        • 2.Qd5#
        • 2.Qf4#
      • 1...c4!
    • 1.Bc3+?
      • 1...Ke3
        • 2.Qf2#
      • 1...Kxc3!
    • 1.Bb4?
      • 1...Ke3
        • 2.Qf2#
      • 1...e3
        • 2.Qd5#
        • 2.Qf4#
      • 1...c4
        • 2.Qa7#
      • 1...cxb4!
    • 1.Rd1?
      • 1...e3
        • 2.Qd5#
        • 2.Qf4#
      • 1...c4
        • 2.Qa7#
      • 1...Ke3!
    • 1.Rxd3+?
      • 1...exd3
        • 2.Qf4#
      • 1...Kxd3!
    • 1.Qb3?
      • 1...e3
        • 2.Qd5#
        • 2.Qxd3#
      • 1...c4
        • 2.Bb6#
        • 2.Qb6#
      • 1...Ke3!
    • 1.Qf2+?
      • 1...e3
        • 2.Qh4#
        • 2.Qf4#
      • 1...Kc4!
    • 1.Qf5?
      • threat
        • 2.Qxc5#
      • 1...Ke3
        • 2.Qf2#
      • 1...Kc4
        • 2.Qd5#
      • 1...c4
        • 2.Qc5#
      • 1...e3
        • 2.Qxd3#
        • 2.Qg4#
        • 2.Qf4#
        • 2.Qd5#
      • 1...gxf5!
    • 1.Qf6+?
      • 1...Ke3
        • 2.Qf2#
      • 1...Kc4
        • 2.Qc3#
      • 1...gxf6!
    • 1.Qb7?
      • 1...Kc4
        • 2.Qd5#
      • 1...c4
        • 2.Qb6#
        • 2.Qa7#
      • 1...e3
        • 2.Qd5#
      • 1...Ke3!
    • 1.Qxg7+?
      • 1...Kc4
        • 2.Qc3#
      • 1...Ke3!
  • Keys
    • 1.Ke6!
      • 1...Ke3
        • 2.Qf2#
      • 1...Kc4
        • 2.Ke5#
      • 1...e3
        • 2.Qf4#
      • 1...c4
        • 2.Qa7#

This is a version of 44011

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINB(a),S_FLIGHT::QAB1(F)
    • P(d);OGATEB,SBLOCK::QAB(F)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(F)
        • K(b);N_SPINB(a),S_FLIGHT::B(C)
      • Refutation
        • P(d);
    • Try
      • B(C);CHECK
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(F)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT,XB(C)
    • Try
      • B(C);
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(F)
        • P(d);OGATEB,SBLOCK::QAB(F)
      • Refutation
        • P(d);XB(C)
    • Try
      • R(A);
      • Vars
        • P(d);OGATEB,SBLOCK::QAB(F)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT
    • Try
      • R(A);CHECK,XB(a)
      • Vars
        • P(c);SBLOCK,XR(A)::QAR2(F)
      • Refutation
        • K(b);P-FLIGHT,XR(A)
    • Try
      • Q(F);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(b);N_SPINB(a),P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB1(F),XP(d)
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(F)
        • K(b);N_SPINB(a),P-FLIGHT::QAB1(F)
        • P(d);::QAB1(F)
      • Refutation
        • P(e);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(F)
        • K(b);N_SPINB(a),OGATE,P-FLIGHT::QAR1(F)
      • Refutation
        • P(f);XQ(F)
    • Try
      • Q(F);
      • Vars
        • K(b);N_SPINB(a),P-FLIGHT::QAB1(F)
        • P(c);SBLOCK::QAR1(F)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT
    • Try
      • Q(F);CHECK,XP(f)
      • Vars
        • K(b);N_SPINB(a),OGATE,P-FLIGHT::QAR1(F)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT
  • Actual
    • K(E);P-FLIGHT
    • Vars
      • K(b);N_SPINB(a),S_FLIGHT::QAB1(F)
      • K(b);N_SPINB(a),P-FLIGHT::QAB(F)+K(E)
      • P(c);OGATEB::QAR2(F)
      • P(d);OGATEB,SBLOCK::QAB(F)
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