MESON Chess Problem Database

Problem Display
PID: 27932 (8/1p6/6p1/1Q4B1/6kP/1R3b2/3K1R1P/5B2 w - - 0 1)

Ivanov, Vadim Aleksandrovich

The Problemist, 2001

8/1p6/6p1/1Q4B1/6kP/1R3b2/3K1R1P/5B2

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Bxe2#
      • 2.Qxe2#
  • Tries
    • 1.Be2?
      • 1...Kh3
        • 2.Qd7#
      • 1...Kh5
        • 2.Bxf3#
      • 1...Bxe2
        • 2.Qxe2#
      • 1...b6!
    • 1.Bh3+?
      • 1...Kxh3
        • 2.Qd7#
      • 1...Kh5!
    • 1.Bf4?
      • threat
        • 2.Qg5#
      • 1...Kxf4
        • 2.Rb4#
      • 1...Kxh4
        • 2.Qg5#
      • 1...g5
        • 2.Qxg5#
      • 1...Bd5!
    • 1.Bf6?
      • threat
        • 2.Qg5#
      • 1...Kf4
        • 2.Rb4#
      • 1...g5
        • 2.Qxg5#
      • 1...Bd5!
    • 1.Bh6?
      • threat
        • 2.Qg5#
      • 1...Kxh4
        • 2.Qg5#
      • 1...g5
        • 2.Qxg5#
      • 1...Bd5!
    • 1.Be7?
      • threat
        • 2.Qg5#
      • 1...Kf4
        • 2.Rb4#
      • 1...g5
        • 2.Qxg5#
      • 1...Bd5!
    • 1.Bd8?
      • threat
        • 2.Qg5#
      • 1...Kf4
        • 2.Rb4#
      • 1...g5
        • 2.Qxg5#
      • 1...Bd5!
    • 1.Rb4+?
      • 1...Be4
        • 2.Qe2#
      • 1...Kh5!
    • 1.Qc4+?
      • 1...Kf5
        • 2.Rb5#
      • 1...Be4
        • 2.Be2#
      • 1...Kh5!
    • 1.h3+?
      • 1...Kg3
        • 2.Rbxf3#
      • 1...Kh5!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qxf3#
      • 1...Kf5
        • 2.Bh3#
      • 1...Kh5
        • 2.Qxf3#
      • 1...Bxe2
        • 2.Bxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);P_PINB(a)
      • Vars
        • K(b);S_FLIGHT::QAB(G)
        • K(b);S_FLIGHT::B(A),XB(a)
        • B(a);N_SPINB(a),OGATE,XB(A)::QAB(G),XB(a)
      • Refutation
        • P(d);
    • Try
      • B(A);CHECK
      • Vars
        • K(b);P_SPINB(a),S_FLIGHT,XB(A)::QAB(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(H);
      • Threat
        • QAR1(G)
      • Vars
        • K(b);OGATEB,P-FLIGHT,P_SPINB(a),XB(H)::R(E)
        • K(b);P-FLIGHT,XP(F)::QAB1(G)
        • P(c);::QAR1(G),XP(c)
      • Refutation
        • B(a);
    • Try
      • B(H);
      • Threat
        • QAR1(G)
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::R(E)
        • P(c);::QAR1(G),XP(c)
      • Refutation
        • B(a);
    • Try
      • B(H);
      • Threat
        • QAR1(G)
      • Vars
        • K(b);P-FLIGHT,XP(F)::QAB1(G)
        • P(c);::QAR1(G),XP(c)
      • Refutation
        • B(a);
    • Try
      • B(H);
      • Threat
        • QAR1(G)
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::R(E)
        • P(c);::QAR1(G),XP(c)
      • Refutation
        • B(a);
    • Try
      • B(H);
      • Threat
        • QAR1(G)
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::R(E)
        • P(c);::QAR1(G),XP(c)
      • Refutation
        • B(a);
    • Try
      • R(E);CHECK
      • Vars
        • B(a);P_SPINB(a)::QAB(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);P_SPINB(a),S_FLIGHT::R(E)
        • B(a);P_SPINB(a)::B(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(D);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::R1(E),XB(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(G);P_PINB(a)
    • Threat
      • QAB1(G),XB(a)
    • Vars
      • K(b);S_FLIGHT::B(A)
      • K(b);S_FLIGHT::QAB(G),XB(a)
      • B(a);N_SPINB(a),OGATE,XQ(G)::B(A),XB(a)
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