MESON Chess Problem Database

Problem Display
PID: 67934 (B2R4/1rP5/N2pp3/pPB1Pp2/4P1bR/3kp3/Q3N1P1/4K3 w - - 0 1)

Myllyniemi, Matti Arvo

2nd Prize, Mat, 1975

B2R4/1rP5/N2pp3/pPB1Pp2/4P1bR/3kp3/Q3N1P1/4K3

#2

13 + 8

5766 Toteutuneita olvalluksia (Myllyniemi) 1980
3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb5
      • 2.Rxd6#
    • 1...Rb6
      • 2.Qb3#
    • 1...Ra7
      • 2.Rxd6#
      • 2.Qb3#
    • 1...Rxc7
      • 2.Rxd6#
      • 2.Qb3#
    • 1...Rb8
      • 2.Rxd6#
      • 2.Qb3#
    • 1...Bxe2
      • 2.Qb3#
    • 1...Bf3
      • 2.Rxd6#
      • 2.Qb3#
    • 1...Bh3
      • 2.Rxd6#
      • 2.Qb3#
    • 1...Bh5
      • 2.Rxd6#
      • 2.Qb3#
    • 1...fxe4
      • 2.Rxd6#
      • 2.Qb3#
  • Tries
    • 1.Sc1+?
      • 1...Kc3
        • 2.Qb3#
      • 1...Kxe4!
    • 1.Bb4?
      • threat
        • 2.Sc5#
      • 1...Rxb5
        • 2.Qb3#
      • 1...Rxc7
        • 2.Rxd6#
      • 1...Bxe2
        • 2.Rxd6#
      • 1...Kxe4!
    • 1.Bb6?
      • threat
        • 2.Sc5#
      • 1...Rxc7
        • 2.Rxd6#
      • 1...Bxe2
        • 2.Qb3#
      • 1...Kxe4!
    • 1.Bxb7?
      • threat
        • 2.Rxd6#
        • 2.Qb3#
      • 1...Bxe2
        • 2.Qb3#
      • 1...a4
        • 2.Sb4#
        • 2.Rxd6#
      • 1...d5!
    • 1.Qa4?
      • threat
        • 2.Rxd6#
      • 1...Bxe2
        • 2.Qb3#
      • 1...Rb6
        • 2.Qb3#
      • 1...d5!
  • Keys
    • 1.Bxd6!
      • threat
        • 2.Sc5#
      • 1...Kxe4
        • 2.Sc5#
        • 2.Qc4#
      • 1...Rxb5
        • 2.Bc5#
      • 1...Rxc7
        • 2.Bxc7#
      • 1...Bxe2
        • 2.Bb4#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(h);XP(G)::R(M),XP(f)
    • R(h);::QAR2(B)
    • B(c);XS(C)::QAR2(B)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);N_SPINP(f),P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);N_SPINP(f),P_SPINB(c),P_SPINR(h),S_FLIGHT,XP(E)
    • Try
      • B(H);
      • Threat
        • S(J)
      • Vars
        • R(h);XP(G)::QAR2(B)
        • R(h);XP(K)::R(M),XP(f)
        • B(c);XS(C)::R(M),XP(f)
      • Refutation
        • K(a);N_SPINP(f),P_SPINB(c),P_SPINR(h),S_FLIGHT,XP(E)
    • Try
      • B(H);
      • Threat
        • S(J)
      • Vars
        • R(h);XP(K)::R(M),XP(f)
        • B(c);XS(C)::QAR2(B)
      • Refutation
        • K(a);N_SPINP(f),P_SPINB(c),P_SPINR(h),S_FLIGHT,XP(E)
    • Try
      • B(L);XR(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(c);XS(C)::QAR2(B)
      • Refutation
        • P(f);
    • Try
      • Q(B);
      • Threat
        • R(M),XP(f)
      • Vars
        • B(c);XS(C)::QAR2(B)
        • R(h);::QAR2(B)
      • Refutation
        • P(f);
  • Actual
    • B(H);XP(f)
    • Threat
      • S(J)
    • Vars
      • R(h);XP(G)::R(M)+B(H)
      • R(h);OGATE,XP(K)::R(M)+B(H),XR(h)
      • B(c);XS(C)::R(M)+B(H)
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