MESON Chess Problem Database

Problem Display
PID: 118812 (8/4B3/2PP2P1/4kp2/1N1Rp3/4Q3/1K6/8 w - - 0 1)

Taverner, Thomas

Montreal Gazette, 1889

8/4B3/2PP2P1/4kp2/1N1Rp3/4Q3/1K6/8

#2

8 + 3

6490 yacpdb 2009
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qxe4#
  • Tries
    • 1.Ka1?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Kb1?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Kc1?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Ka2?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Kc2?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Ka3?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Kb3?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Kc3?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Sa2?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Sc2?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Sd5?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Sa6?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Bh4?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Bg5?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Bd8?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Rc4?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Qg5?
      • 1...Ke6
        • 2.Qf6#
      • 1...e3
        • 2.Qxe3#
        • 2.Qf6#
      • 1...Kxd4!
    • 1.Qb3?
      • 1...Kxd4
        • 2.Qc3#
      • 1...e3
        • 2.Qd5#
        • 2.Qxe3#
      • 1...f4
        • 2.Qd5#
      • 1...Kf4!
    • 1.c7?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.d7?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.g7?
      • 1...f4
        • 2.Qxe4#
      • 1...Ke6!
  • Keys
    • 1.Qh3!
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Sd3#
      • 1...Ke6
        • 2.Rxe4#
      • 1...e3
        • 2.Qxe3#
      • 1...f4
        • 2.Rd5#

This anticipates 5071(1897-1898)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR1(B),XP(a)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(H);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(H);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(H);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);N_PINP(a),P_PINP(c)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT,XR(D)
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(B)
        • P(c);SBLOCK::QAR1(B)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • P(E);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(F);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(G);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);N_PINP(a)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(B)
      • K(b);P_SPINP(a),S_FLIGHT::S(C)
      • K(b);P-FLIGHT,P_SPINP(c)::R(D),XP(a)
      • P(a);OGATEB::QAR2(B),XP(a)
      • P(c);SBLOCK::R1(D)
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